The bichir is too big to be food, he's probably 5 maybe 6 inches right now, oscar is 4What's wrong with the silversides? I have a big tub of them that can last me over a year and both oscar and Bichir like eating them. Why change to tilapia? I have tongs, would it work if i only fed my oscar pellets and kept feeding the bichir silversides, and eventually get him on the pellets as well? and keep the fish as a treat.