I have a 20 gal planted tank with 6 neon tetras and 4 cory cats. I am in the process of slowly adding to corys to build up their numbers. I am having difficulty feeding my community. I feed a small amount of flake food at the top for the tetras and a half of a sinking pellet broken up at the bottom for the corys. Inevitably when the neons finish they find the food at the bottom. As a group they bully away the corys from the sinking food. So I have two concerns with this. I want to ensure my corys are getting enough to eat. Also the neons eat so much that they get bloated and constipated making it dangerous to feed daily. Any thoughts of what I can try to make feeding time more successful?