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I would try to stick to fish, prawns and other seafoods, freshwater shrimp &
crustaceans, krill etc.etc. also dont feed the food frozen - thaw to room
temperature before feeding (despite early advice to the contary on this list)
--- Thaw first - I think for the most part I agree with Adrian on this. I actually go one step further and thaw, then wash my bloodworms and my frozen brine shrimp under cold running water in a fine mesh net. It is certainly fed within 15 minutes after thawing so you would be extremely hard pressed to say that this food was spoiling during this thawing process. Likewise for loss of vitamens. Knowing the hogs rainbowfishes are I have seen them swim off with an extremely large piece of food in their mouths. I think someone else mentioned here on the list before about a bow messing up their mouths by swallowing or grabbing too large of a piece of food. I have had to remove 1/2 of a pea from the mouth of a big bow that went after the "pleco" food. So by thawing frozen foods I avoid any problems with too large of a chunk being placed into the tank, I also remove a lot of the pollution that the fish wouldn't be eating anyway. One other point to consider especially if your frozen food sinks quickly - they will often leave it at the bottom of the tank where it will foul quicker. Feeding a baster full of thawed bloodworms seems to get utilized quicker than the same size chunk tossed into the tank.Gary Lange RSG