I actually have plans in the works to raise cherry shrimp in my 20 gallon, and maybe feeder guppies. I've been reading that you can keep the fry and baby shrimp safer by placing pantyhose over the intake for your filter, and keeping plant cover does help ensure more survive than would otherwise.
A plus for the cherry shrimp is that I can feed them fruit and things grown in the garden. Full cycle eco system.
i saw this problem in honduras. fixed it by puting a bicycle iner-tube inflated just enough to give it some rigitity on the water, then put the food inside the ring. the fish can get the food and the food stays unafected by water movement.
Perhaps you can adjust you water flow and aeration such that it would help keep the food from floating into the plants before the fish have a chance to eat it. That might be kinda tricky to balance and keep the plants from floating to the spot you are trying to keep the food.
Yea, a feeding ring works where the fish are not too aggressive in their feeding and floating feed is used. I've found that fish splashing when they come up for food can tend to move much food out of the feeding ring though. Just have to find the right balance I guess.
I found this article about a great concept! This student is testing the use of post-consumer food scraps to replace the fish feed!
Is anyone growing plants for fish fodder in their dirt gardens?