found this on another site about rinsing food

[rayjay]

For me, I rinse to rid the micro particles that otherwise will add to the tank loading and faster deterioration of water quality. Any preservatives that get removed along with that is just icing on the cake.
Rinsing food of ANY size is not a problem as I have various nets with differing sieve sizes to accommodate even smaller food than cyclopeze.

[Rogue951]

I don't have a net that small so i just poured the melt water off.
but since it doesn't seem to be that big a deal and I only feed 2 cubes a day I guess i don't need to worry about it so much.
Thanks.

[Madreefer]

Interesting read thanks. I make my own food and I rinse rinse rinse. It may not help according to the experts but it makes me feel better. I'm not changing my ways.

[asylumdown]

that is very interesting. The only reason I was rinsing my food for the past year was because the place I thaw out my cubes in warm water is on the other side of the house from the tank and I always spill gross nasty fish water walking the cup across the house unless I strain it out! Now I'm rinsing so that I can feed to frozen food directly from the strainer in to the tank. I'm trying to train a fish I want to catch to not be afraid of nets!