It doesn't flake when I use it. It stays whole. They are small so it gets nipped alot and it holds together really good. There is no trace of it after they're done eating =). The downside of it is Halibut can be pretty expensive.Atlanta Braves Baby! said:What is the consitancy of it when they start to feed on it? Does it start to flake off or does it pretty much stay whole and not spread all over the tank?