i currently have 6 black neon tetras, 6 neon tetras, 6 (store finaly got some!) giant danios, and a lepord (sp?) puffer. i feed my fish every other day with a mix of flakes and brine shrimp, my puffer wont eat flakes and i hope to maybe train it but as for now it only likes the brine shrimp. i only feed my fish enough food so that they can finish it within 5 minutes, but after feeding my puffer gets a nice, big, plump belly. i dont know if im putting too much brine shrimp (the puffer is the only fish that eats it, the others do not like it i guess) or what? the only good thing is that in the morning when i turn the light on it doenst have the big belly...so is it just a piggy eater or am i overfeeding?