So I just got some new fish- six red eyed tetras and a single rainbow shark. I gave them their first feeding of Omega One flakes but when i dropped them in none of them went after them. Luckily my filters current soaked them and washed them downwards so my tetras got to picking at them and ate almost everything XD. But my rainbow just sat and hid in the log : / any suggestions as how to get my shark some food before the tetras get at it?