Thank you.. i think the trick with them is when they are babies..to make sure they eat well ... not stressed etc... the ones that have to hide all the time just don't get enough to eat... mine eats hikari cichlid pellets... and then other treats to make a varied diet..Death Pony;2892618; said:Your knifefish are insane!!! I've never seen a BGK that big. I really want one now, such a cool fish!