I have a 20g AIO with a clown, hawk, damsel, dotty back, mandarin and cuc. They mysis frozen food packets are way too much for my tank. I feedpelletsin the am and frozen mysis in the evening. I cut the cubes in half for the evening feeding. I usually pop a row out and cut a bunch up and store them in a baggy. It helps whem my wife has to feed when I work late. Its a pain in the rump and hard to get consistent sizing. Even at half a cube it seems to be a bit too much. I have been buying the San Fransisco Bay food brand. Is there a company that makes a smaller size cube? I got lucky and my mandarin loves the mysis as well.