So I know about feeding my fish, but would like to know what would be good to feed them besides flakes. I want something healthy, a treat for them, and something inexpensive. I use TetraMin tropical fish flake food currently as my food source. What are some other foods for: -Zebra Danios -Tiger Barbs -Neon Tetris -Dwarf Gouramis -Rainbow Shark I don't currently own all of the above fish, but was thinking a little down the road....... P.S.-how much, how often do I feed the fish these treats? How do I make sure the neon tetra gets what th neon tetra is supposed to get and the zebra danio gets what it is supposed to get and they are not stealing each others food? Thanks!