I just bought a black ghost knife . I put him in my 30 gallon cichlid tank ,i have ,a blue and yellow labidocromis , no one picks on him but... my main question is , whats the best thing to feed him and should i add salt to the water frequently?? He seems to stay to the to all the time and go behind the hang on filters i dont know why, there are plenty of hiding spots specifically made for him.. soo i dont know why hes not going to the bottom. also is alot of oxgen necessary for him, i have two filters on full flow on the tank and thats it no air pumps ..
