cory

quick question,my girlfriend got a black ghost knife fish for her birthday,are they compatible with our community tank?

username

no because they will grow 18 inches and will eat community fish.

poefox

That's exactly right. They are cool fish but only fairly large fish can handle them.

cory

ended up taking it back,figured it would be best for our community tank.
heres more on it here if your interested....

http://forums.loaches.com/viewtopic.php?t=4294

username

You could divide a tank into 2 with a tank divider if your tank is very large.

cory

its a good size tank 55g, but a knife fish needs about a 100g or more when its full grown they get to over 20 inches.wish i could of done something like that though. that was the coolest fish ever,very fascinating to watch.

Butterfly

Yes they are fascinating fish, but Loaches.com was giving you the exact correct answers. They are really a great group.
Do watch your dojos though because they appreciate a little cooler temps than the others.
Carol

username

a 75 gallon might work for a BGK to be alone.