Black Ghost Knifefish?

could i keep one with my dragon goby and silver dollar fish in a 55. (i know what your going to say, dragin goby is BW but i keep mine in FW and he does just fine)
 
could i keep one with my dragon goby and silver dollar fish in a 55. (i know what your going to say, dragin goby is BW but i keep mine in FW and he does just fine)
I wouldn't encourage that mix.;)
 
poop.
 
My clown knife is rather passive...he will eat small guppys, but he eats hikari carnivore pellets and shrimp pellets 99% of the time. I havent had any aggression problems at all, His tank mates are a north american pumpkinseed(wild caught) and a feeder gold fish. Imo, from my experience, if u dont overstock, and you have a fish that is larger then your knifes mouth, you will be ok.
 
just so u know...the clown knife is about 8" and the pumpkinseed is 2" the feeder gold fish is about 1.5"
 
the violet goby will more then likely be "fine" for a while in pure fresh water but it will eventually "unexpectedly" die. will you then say the specimen you bought was "bad" or diseased?
 
nah. ive had him to long. i might think hes diseased if he started actin weird or falling apart.
 
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