Caring for Your New Black Ghost Knife Fish
Inside scoop from Aqualand on Apteronotus albifrons                      

 
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Black Ghost Knife Fish Factoids

Origin

Amazon and Paraguay rivers

Maximum Size

16 to 20 inches

Housing

Larger the better

Security

Must have a cave or hiding hole

Temperature

72 to 80o

Working Schedule

Prefers the night shift

Lighting

Prefers subdued light

Oddity

Swims upside-down and backwards

Foods

Prefers live foods -- esp. neons

Water

Prefers water toward neutral pH

LA
Black ghost knife fish always look good.

LA
Especially when they feel comfortable.

LA
And they feel pretty good in planted tanks.


Origins:
 Not bred in captivity (except for one report from Australia), black ghost knife fish all come from the wild – mainly the Amazon and Paraguay rivers and their tributaries. 

LA
Black ghost knife fish look like this when they "give up the ghost."

Name Origin:  Theoretically, the local natives believe the ghosts of their dead relatives live in these fish.  Or perhaps their missing kitchen cutlery re-lives in these guys?  We cannot verify either theory from personal interviews.  Most of the local people now probably have cable and watch the Discovery channel.  Chances are, they’ve changed their minds.

LA
Wholesaler's tank full of black ghost knife fish.   Most are in that black tube.

LA
Other black ghost knife fish are out in various positions.

LA
They do weird things in wholesaler tanks.

Water Conditions:  In general, plain old aquarium water works fine.  If you make regular water changes and don’t overfeed, your black ghost knife fish will thrive.

LA
Black ghost knife fish swim at strange attitudes.

Appeal:  Who can resist a jet-black fish that undulates in the water?  A fish that can swim as well backwards as forwards?  A fish that rapidly learns to eat from your fingers?

 

Size:   We’ve seen reports of 20-inch long specimens.  On average, few black ghost knife fish exceed 12 inches – probably because most people keep them in smaller tanks.

Arguers:  Don’t mix two black ghost knife fish together.  They argue very much with each other – especially in small aquaria.
 

Hans Willemsen, Nederland, September 14, 2006
Sirs, I read your article on the Apteronotus albifrons. Mine react a little different from what I've read so far. I hold 2 Aptos in a 200 x 50 x 50 cm aquarium. They hardly ever interfere with each other and show themselves on feeding time.
I hold them in a black water-creek habitat with wood, sand and hardly any plants, together with 5 Geophagus proximus (or Geophagus surinamensis, I'm not sure), 5 pearl gouramis, 2 Sturisoma aureum, 5 Ancistrus dolichopterus and a few left-over female guppies, and some Barbus conchonius.
The Apteronotus (one 15 cm, 1 22-25 cm) grow well; they were added to the tank some months after the Geophagus and algae eaters. Since they are present all male guppies have either disappeared (if eaten: OK) or died with eyes and fins eaten away.  Feeding all the fish in the aquarium is twice a day and every fish takes part. The Apteronotus eat frozen food (red mosquito larvae) and any kind of granules.
A male Betta I added on Tuesday also has eaten fins and is so scared that it hides in inaccessible places. I'm afraid it won't make the weekend. Is it common for an Apteronotus to just eat the fins? If it would eat small fish it wouldn't bother me that much, but fish just being killed is not very useful. Greetings,

A:  In a large tank like yours, your knife fish have plenty of room with no need to argue.  Too many people try to put two in a 10-gallon tank (40 litres) because they buy little ones.  Knife fish are bitey predators and like small, tasty fish -- including bettas.  Your red mosquito larvae are probably what we call frozen bloodworms over here.  Most fish love them.  I'm adding your comments to my ghost knife page to encourage everyone to keep them in larger aquaria.  LA
 

Paul Guest, Melbourne, AU, November 1, 2007
Firstly thank you for all your helpful information. On more than one
occasion it has come in very handy. My email is concerning my black ghost knife and a group of friends who have them. It seems from what I've just read on your site and individual experiences that they display very individual qualities. I've now had mine 24 months. He is approx 16 inches. He has never been a fussy eater: flake, frozen, live bloodworms. He (I assume he) is in a 4ft x2ftx18" community tank (4 angels, 1 red tail and 2 silver sharks, 1 up-side-down cat and assorted loaches) that USED to have neons and guppies and betta m/f.
All the smaller fish were eaten inside 6 months, as he grew and his mouth grew.  Now he is peaceful enough and even Friendly towards other fish. But if you put a small fish in, it won't last the night. I recently bought 20 neons to brighten the tank a bit. They should last a month. He didn't even look sideways at them when they went in.  Next morning I had two left. Yet a friend's knife won't touch even her BABY guppies, and that knife is 10." Smart fish ...Yet they ALL lie on the bottom ASLEEP on their sides looking like they are dead. I hope this helps add to your knowledge pool and is useful in some way.

A:  Always glad to add to the knowledge pool.  I'll add your comments to our black ghost knife page.  LA

LA
Two rocks make an instant cave for your black ghost knife fish.

LA
Hurricane lamp chimneys let black ghost knife fish hide in plain site, eh.

Hiders:  At least one manufacturer makes clear plastic “ghost houses” for black ghost knife fish to “hide” in.  We like the glass chimneys of hurricane lanterns better.  An upside-down clay flowerpot with a notch in it will also work.  Ceramic or rock caves look better.  You’ll often see them poking their heads out as though waiting for food to pass by.  If you give them no place to hide, they duck behind your filter tubes.

Trick Them.  Lean a piece of slate against your front glass.  Your black ghost knife fish will quickly slide under your instant hiding place.  Works every time.  You will see your knife fish front and center 90% of the time.

LA
He's only six-inches long but has a big mouth that would easily snag neons at night.

Foods:  Black ghost knife fishes readily eat small live foods – California black worms, feeder white clouds, and other tasty morsels.  Larger ghosts graduate to guppies, rosy reds, small goldfish, and earthworms.  Most will convert to frozen foods.  We’ve never seen any of them eat flakes.  (Helen Crowe reminds me that these rascals do eat flake foods and Tetra's Colorbits.  Her black ghost knife fish grew from four inches to 12 inches in six months and consumed lots of flake foods in the process.)  We’ve heard some people say they feed theirs shrimp pellets.  We personally dislike this food because it pollutes the water.  Beware:  Black ghosts grow large enough to snap up neon tetras and similar sized fishes.  

Ryan, West Bloomfield, MI, January 31, 2006
Hello, my name is Ryan. I am 14 years old and I live in West Bloomfield, Michigan. I really enjoy the information that your website has provided me on black ghost knife fish and other fish. I have noticed that in your information on black ghost knife fish that you have never seen them eat fish flakes. I have fed my black ghost knife fish TetraMin Tropical Fish Flakes and he likes them just as much as he likes his blood worms. I have had my black ghost knife fish for almost a year now. He appears to be in very good shape. Well, I just wanted to let you know because I just feel cool reporting this. Anyway, thank you for your information and I hope you find this interesting.
PS I wish I could send you a picture of my tanks and fishies.

A:  Thanks for the report, Ryan.  Ill add it to my black ghost knife fish web page.  LA
 

Eric, Attleboro, MA, January 11, 2007
Hey, I was reading up on your section about the African knife Fish, black ghosts etc. I have had my African knife for about 6 months now, and I have seen him eat flakes and pellets.
I mainly feed him ghost shrimp though, there's nothing better than watching these guys grab up a ghost shrimp at night! I mention this because I didn't see it mentioned that you can use the ghost shrimp to feed the knife fish in your section. He is about 7" in length and he has yet to touch any of my neons or fancy guppies. Great fish! And your site is awesome!

A:  Thanks for the info.  I'll add it to my black ghost knife fish   LA

 

LA
Your black ghost knife fish back stripe is white in real life.

LA
Brown ghost knife fish.  Quite similar but half the price.  Stays smaller.  Treat the same.

LA
The browns love tubes also.  We poked his tail to nudge him frontward.

LA
Here's a brown ghost knife trying to blend into the leafy vegetation.

Electric Food Finders.  These nocturnal feeders use a weak electric current to locate food in the dark.  This makes black ghost knife fish poor tank mates with other so-called electric fishes such as the elephant noses, baby whales, and other mormyrids.

 

Tank Mates:  Keep black ghost knife fishes with fish too large to swallow but not mean enough to beat their stuffings out.  For instance, most cichlids would harass them unmercifully.
 

Sharon Carr, Sorrento, FL. February 4, 2007
I have read your site over and over.  We have gone through about $150 worth of tank mates for our black ghost knife.  I did the research this last set of fish we went through.  We were given the knife with two silver dollars (over 3" tall each) and two large cory cats in a 20 tall tank.  They had been housed together for a year or so.  The knife is about 7".  All of the sudden the silver dollars had black "wounds" on their sides and eventually no eyes.  They died quickly.  We put in a few other sets of fish before I decided to stop wasting my money and Google tank mates for our little guy.  I found a website that said bala sharks, angelfish, plecostomus, loaches, cats, etc.  He poked 6 fishes eyes out and killed them within a 4 hour span about a week after they were all placed together!  The angels seemed to survive then about two weeks later three of them were murdered.  So, he is now in a tank by himself, but it's very boring for our 10 year old to watch, since she is normally in bed when he comes out to play.  The pet shop that normally buys back other fish doesn't even want him.  Hate to toss him in the yard but I'm about at that point!

A:  Not every fish fits the mold.  Most do.  Yours certainly doesn't.  You may want to give him one more shot by mixing him with four to five-inch American cichlids.  I'm including your report on my black ghost knife fish page.  LA

Breeding:  Never say never, but don’t waste your time.  We’ve never personally heard of anyone breeding black ghost knife fish.  (Or even trying to breed them.)  Since they fare poorly when kept together, you probably need a very large tank.
 

Vicki Erickson, MA, February 13, 2007
I have 3 ghost fish in a 55 gal tank, the biggest is 16 inches, the next one is 12 inches, and the smallest is about 9 inches. I don't know which one, but one of them just had 2  babies. I was looking to get help on what to do with the babies, or how long to leave them in the tank, or who's the mom How many times they will have babies? I still can't believe it happened. They are so cute. Any help let me know.

A:  How big are the babies?  I'd take them out right now so the parents would not be tempted.  I'm unaware of any black ghost spawnings, so keep me informed.  Baby black ghosts hit the market at 1.5 to 2 inches long.  If you have friends like some of mine, they would sneak in baby black ghost knife fish to tweak me.  Any chance of a photo?  I'll add your report to my black ghost page.  LA

Vicki Erickson, MA, February 18, 2007
RE Feb 13 email on ghost knife spawning
I could only get a picture of one baby ghost knife. The other one is hiding. I don't know how old they are, maybe 7 weeks. We never saw them from egg to baby. The big one is the dad.

VE

A:  Congrats.  Start passing out those cigars.  In the meantime, Kathie (who works at Aqualand) sent me a couple ghost knife spawning reports.  I lost them temporarily.  I'll get them to you later.  LA

Shane Benck, Bunbury, Western Australia, April 26, 2007
Hi, I just bred black ghost knifes. I just wanted to share. As far as I know, not too many people have!

SB
Good pic of Shane.  Not so hot of the baby ghost knife.

SB
So it's a good thing he sent this pic also.

A:  Congrats, Shane.  Now you need to write it up so we know the secrets of your success.  I'll add this report to my black ghost page.  Thanks.  LA 

LA
Like we say, black ghost knife fish like to swim weirdly.

LA
This guy spends his time torturing female bettas.

Substrate Choice:  Usually, light colored gravel on the bottom will bleach out a dark fish.  You can put these guys over bright white sand and still enjoy a jet-black fish.  White sand will, however, bleach out most of your other fishes.  Don’t put your black ghost knife fish over black gravel, or he will become invisible. 

Disease Treatment:  Many parasite and ich treatments will kill these “scaleless fish.”  Use them at half strength or weaker.

 
 
LA Pic
This black ghost knife fish chases these upside-down cats away but they keep coming back.

LA
Before you go you might as well see a mottled knife fish.  Loafing upside-down, naturally.

LA
Another one.  He refused to take a bow until we forced him.

LA
Nice growth of algae here.

LA
These guys just refuse to show off.

LA
And they like to loaf lying on their side..

LA
Gold-line knife fish.  Line on side -- not on his back.  Treat 'em all like black ghost knife fish.

LA
Not a black ghost -- just has the same needs.

LA
Elephant nose knife fish.

LA
Intriguing trunk.


LA
Black ghost knife fish do not swim like normal fish.

LA
Here's a foot-long black ghost knife fish temporarily with several black moors.

LA
Happy two-inch black ghost knife fish in a "forest" of hygrophila and anacharis.

Filtration:  Your black ghost knife fish needs clean water.  Do not overfeed.  Use good aeration and frequent water changes to help keep their water clean 
and healthy.  LA.
 

Trevor Worthington, November 10, 2006
Hey Aqualand, I was browsing your site when I decided to check to see if my favorite fish was there. Sure enough, it was. I have a Black Ghost Knife and he's not aggressive at all. Actually, he seems to think all the fish are his friends. He hides behind our almost 3 ft long plecostomus and plays in the bubbles with our neons and tiger barbs. The PetSmart store where we got him said that he was the best Ghost Knife they've had so far. Apparently, he'll eat right out of your hand, and he'll play with you too. I think your description of the little guys is a bit harsh. I've never, EVER, seen my Ghosty make any attempt on another fish's life, and we still haven't lost any fish since we got him (almost half a year ago), not even our neons. I just hope that you'll have a use for my little report.  Thanks,

A:  Alright.  I'll add your info to my ghost page.  Thanks.  LA
 

Lisa House, Shalimar, FL, January 1, 2007
I like your site. I came on looking for information concerning a Bolivian Ram that I just bought, except guess what?  It's not a Bolivian.....lol.  Definitely a Ram of some type, just not sure what yet.  Love these pet shops!!!!!
Anyway just wanted to add a comment about Black Ghost Knife fish.  If they are happy they live a long time.  My ghost "Dagger" is almost 12 years old now.  He lives with a bala shark,  a young iridescent shark, a young rainbow shark, a 6 year old synodontis eupterus, and a bumblebee goby.  The goby is around 8 years old now, the bala shark is  6,  I also have emperor tetras, so he is the population control guy, even though he never gets all of them.  He never bothers the adults, my original breeding pair of emperor tetras are 6 now and looking pretty ancient. I had a kribensis in there until recently when she died at the age of 8, so the ram is her replacement.  I have had success with diamond tetras, black fin tetras, angelfish, a brichardi, and even a young jack dempsey. I guess because they were all little together, they never bothered each other once they grew up. My ghost has outlived them all.   I  did move another more aggressive Synodontis eupterus in with my oscar in another aquarium because he and the ghost were squabbling over a wooden log.  My ghost has lived too long to put up with that garbage, and the synodontis is doing just fine with the oscar.
Not sure if I just got a sweet one or what, but this is my second ghost. The first one was housed with small cichlids and a female betta and I had no problems with that one either.  I think keeping them well fed with a variety of food, frozen, live brine shrimp, or blood worms, flakes, a few shrimp pellets, etc.... seems to work for me.  I spoil my fish and try to set the tank up in a way that pleases everyone and have been very pleased with most of their life spans.

A:  Thanks for the report.  I've added it to my ghost page.  LA

Anthony Rich, Brisbane, Australia, May 3, 2009
I was reading your page on Black Ghost Knife fish and thought I'd mention that they aren't all tough guys. Whilst everyone seems to be worried about BGKs eating their smaller tank mates I've almost never heard anyone mention that others can cause them harm.
I recently discovered that they cannot be kept in the same tank as Red-Tailed Black Sharks. I had introduced a BGK to my established 7' community tank and after a short time noticed that the resident sharks would beat him up, sending him packing into his neighbour's territory where he'd beat him up some more and so on onto the next. Four sharks and no peace for the BGK. The sharks, I think, were assuming that another black fish must be another red-tailed black shark and so were keen to defend their territory -- apart from border disputes amongst themselves, they have never bothered any of the other fish in the tank.
Anyway, I rescued the BGK and put him into another tank with Riffle Shrimp and Bristlenose. Everyone seems to be getting along in there and I've seen no problems since. The territorial behaviour would explain why my previous BGK did not last the night.

A:  Thanks for the info.  I added it to my BGK page.  LA

Tiffany Lovell, Morristown, TN, August 23, 2009
I recently found your site and must say it's great! I was reading the info on the black ghost knife fish. We've had ours going on 2 months now and everything is going great! He's around 3 inches but no more than 4. He's still a little too shy to eat out of my hand but I still attempt it. As far as him not being compatible with the elephant nose, they love each other. They swim, eat and also rest with one another. We have a 55 gallon with tiger barbs, bala sharks, pictus cats, iridescent shark, rainbow shark, clams, snails, different kind of tetras, rams, kribensis, glass cats, goby dragons, syno cats, crabs, angels, butterfly Chinese algae eaters, and one rosie that fails to be eaten and has grown to the size of 2 inches, which is unusual with them and last but not least a male betta. They all get along great and are not crowded at all. The black ghost knife hasn't bothered a soul and is a great addition to my tank... Oh and I've seen him eat flakes as well. It amazes me that he can be swimming forward and kick it into reverse just as fast. I won't give up on him eating out of my hand lol. Just wanted to share some info. Thanks. Tiff

A:  Good report.  I'll add it to my ghost page.  LA
 
Darby Pate, Ione, WA, November 1, 2009
I thought I would add my two cents, and I hope I am SENDING this TO the correct spot ha-ha!
I got my black ghost knifefish in August, thinking he would be okay in a 20 gallon tank. Boy was I wrong!  Starting out, I had a tank that was not cycled, and this fish, named Elvis, survived many ammonia spikes.  I was able to get my hands on a 75 gallon tank, and quickly moved him over and got some media from an established tank to cycle it quick.  When I got him he was 4 inches, and he is now over 7 inches.  He did come with a deformed pectoral fin (it is 1/2 the size of the other one and doesn't work) but he gets around just fine.
Anyway, Elvis is now living in the bigger tank very happily.  I would not recommend getting this fish if you are not going to be able to get a bigger tank in the future, something the pet store people fail to mention. 
Elvis recently got a new tank mate in the form of a Red Dwarf Gourami who was constantly being harassed in another tank.  I stayed up the whole first night watching them to make sure they didn't hurt each other.  They have been together for about a month now and no problems to report!
Elvis will eat anything I put in the tank, including frozen and freeze dried bloodworms, every kind of shrimp, kelp flakes, boiled peas and he ate all the heads off my Ramshorn snails, but leaves the Trumpet snails alone.  They must not be as tasty?  He also eats out of my hand.  He constantly scouts out the intake of the filter looking for leftover food.
Elvis comes out at all times of the day, and I think he has sensing super power. He knows when my finger/hand comes anywhere near the surface of the water!  He shoots out of his hiding spot and is ready for food!  He has this plant that has been in there since I put him in the tank, and he uses that as his Lazy-Boy.  He lays upside down on it, with his fins resting on the leaves ha-ha!  (I can send you a pic of that if you would like)
He LOVES bubbles, I think it's a massage for him, and he will dart from bubble wand to bubble wand, playing. So I have about 4 of them in his tank, including a bubble disk.
Feel free to put this on your BGK section of your page.  I hope it helps other people, since there is not a lot of info on BKGs out there.
Thanks!

LA

A:  Thanks for your report.  I'll add it to my BGK page.  He probably ignores your trumpet snails because they spend 97% of their time under the gravel.  LA

Wes Leubner, Upstate NY, June 17, 2010
Just thought this might be something interesting to add to the BGK page (read it about 100 times) since I don't think anyone else has mentioned this yet. I've had a BGK for about 7 months now, bought him at about 5-6 inches in length and he's probably around 7 or so now and happily living in my 35 gallon flat back for now with a bunch of other randoms that he gets along with. Anyway, I have noticed that this little guy (who one would assume is strictly carnivorous) has an unusual propensity to eat vegetation. I first noticed this when i saw him snacking on algae wafers that I drop in there for the pleco/catfish, but more recently I've seen him eating the cucumber slices that I toss in the tank every so often for the other fish. Even stranger, this morning I saw him biting at the center of a cumber slice in what looked like an effort to knock the seeds out, and when they pop out he goes straight for them! I saw him eat 2 or 3 seeds like this before his tank mates started swarming around getting in the way of things. Weird right? I'm guessing this isn't bad for him purely on the evidence that he's been doing it for several months and seems to be perfectly fine. The normal (and predictable) part of his diet includes blood worms, krill, beef heart, shrimp pellets, live ghost shrimp and the occasional neon tetra. He'll eat it all, but I would hardly call him aggressive in any way. Has anyone else noticed a behavior like this out of their fish?

A:  Very interesting.  I'm adding your report to my black ghost knife page.  Thanks.  LA

Quinn Family, Westminster, CA, April 28, 2011
I just discovered your website and enjoyed the discussion of Black Ghost
Knife Fish, but had a couple of comments to contribute.  Ours is named
Flipper and we've had him 4 or 5 years in a 29 gallon tank.  He was
about 3 inches long when we got him and is now about 12 inches.  He has
lived with 3 scissortail rasboras, 2 knight gobies and a plecostomus for
many years (also a half dozen or so feeder guppies which occasionally
disappear and we seldom see babies, but that's why the guppies are in
there).  The tank has a 12-15 inch limestone rock and lots of plants
(both rooted and floating).  If we put in something new, it has lots of
places to hide and if it survives the first week, it generally does
well.  Once a scissortail lost an eye, but he healed up and lived a
couple more years.  We are convinced that the reason  many ghost knives
don't thrive is because they are stressed from not being able to avoid
bright lights.  Flipper's first home was a pair of abalone shells; one
with the inside up and the other propped upside down over it so he could
nestle inside.  He always makes sure that his front half is hidden from
light.  When he outgrew the abalones, we shopped at the hardware store
and found (in plumbing) a Y-shaped black sewer pipe.  We put it into his
tank diagonally so we could look through and see him but he could escape
the lights, then planted plants and propped his abalones over and around
it so it's invisible (the gobies hide in the cave formed above it). 
Once a month, I put in a dollar's worth of live bloodworms and 10-20
ghost shrimp.  The rest of the time we rotate dry foods.  Each day we
put in a little "big" food (floating pellets, dried baby shrimp or dried
bloodworms), a corner of a block of tubifex, a few flakes and 3-6 algae
pellets.  He will eat any of these.  Occasionally we put in thick slices
of fresh zucchini (we thought for the pleco).  Surprisingly, Flipper
sometimes comes out in the bright light to gobble the algae pellets like
candy, and at times he eats big chunks of the zucchini.  Sometimes
there are still a couple of ghost shrimp in the tank when I add the new
supply.  I think the combination of dark hiding places, variety of foods
and vegetables has helped him to be healthy.  He's the fattest ghost
knife I've ever seen.  This note is kind of long, but I hope it is
helpful to some of your new folks.

LA
10-inch black ghost knife fish.

A:  Good info and good advice.  BGKs do prefer low light and hiding places.  They are good eaters.  I'm surprised he doesn't eat all your smaller fish.  He has a very large mouth.  I'm adding it to my BGK page.  Thanks for your input.  LA

David Cessna, NC, August 16, 2012
Since i got info from reading, i only thought it fair to contribute!  Had my BGK a couple of weeks now, in an overstocked, undersized, but well established and healthy tank, it's quite young, less than three inches.  Beautiful and healthy.  My favorite fish for sure.  It gets along fine with the powder blue gourami, albino cory cats, mystery snails, glass(or ghost, cant remember) catfish.  Every now and then the glofish from petsmart get territorial, but with everything not just the bgk.  It's only darting at them and turning though, like playing chicken, or trying to scare instead of injure.  The black mollies, i think, believe the BGK to be one of them from time to time and do that playful nipping when they're trying to hook up, which freaks out the BGK but once they break line of sight it's like it never happened.  Rainbow shark nips from time to time, but the BGK does it back, and neither one seems very worse for it, in a few months though that rainbow shark is going to regret it lol.  the african dwarf frogs will nip at the BGK during feeding time, but they dont ever connect, and with african dwarf frogs it would be strange if this didn't occur.  A pair of pictus cats drive everyone crazy, bgk included, but it just swims (backwards!) off of the bottom untill the pictus go back to their den, and then resumes whatever it was up to.  The ghost shrimp remain unharmed, all appendages accounted for.  This is the only BGK i've had, so i don't know if this applies accross the board, but the best tank mates by far for the BGK are my black kuhli loaches.  They will lay out with each other, in the day light!  After reading the entire BGK page i understand that this isn't typical behavior so i had to share, and i will return with pictures!  Also it never bothers the clams.  Nothing ever has, but that doesn't mean it diminishes the fact.  The bgk loves hiding under low spots, and goes in my tubes, but not my bottles, not even once, it can tell (i think) that there is only one way in or out.  The preferred hiding spot by far is the roots on the dwarf lily bulbs.  i grew the roots through things, and the BGK 'stands' vertically, head upwards, and just sleeps in the roots!   For feeding I was told bloodworms, which i use in frozen and freeze dried form already.  First i add my flakes, then freeze dried bloodworms, broken up bottom feeder tabs, broken up algea wafer, then after a couple of minutes the thawed bloodworms and the BGK always disappears at this point.  The way they swim would indicate illness in common fish, it looks weird at first, but upon learning it was normal, i am very proud of the fact.  I hope this makes it to your BGK page, i am pleased so far with this fish, worth the money!

 

A:  Interesting observations.  I'm adding them to my BGK page.  LA

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