I have a pair of small clowns that I’m currently feeding NLS pellets and Hikari Bio Pure, Mega Marine. I’ve been thawing a whole cube at a time, in about 50/50 mix of tank water an RO or distilled water, and storing it in the coldest part of my fridge. I’ll use the whole cube in about a week and a half. Is it common or practice to store thawed foods in water? What kind of water?