I noticed one of my poor JuliI cories is very thin. It's stomach is almost sullen. Is there a way I can get more food to the bottom of the tank for my cories? I feed them shrimp pellets and I make sure some of the flakes sink, but I'm afraid the pellets might be too large and they won't last long enough on the bottom to soften up. Should I try soaking them before hand? Or is there a smaller shrimp pellet option? I'm not sure I'll be able to fatten up the currently thin Cory, but I would like to prevent further cories from starving. Also, do algae wafers provide any type of food supplement or anything for cories? The ones I have get soft quite fast. I know they aren't good for a staple diet, but if it's just enough to make sure that all six cories are getting enough I could feed them those in addition to shrimp pellets.