What do you feed your tank?

[puttycat]

I also reuse the containers the frozen food comes in. Each square is a serving.

 

[Bifferwine]

With the formula 2 the omnivore fish like to peck at the cube. I wish there was something that could hold the cube so it stays where the fish can easily get at it.

There is. It's a suction cup with a plastic mesh attachment. You can probably find them at Petco or Petsmart. :)