Frozen food danger?

[coyotethug]

Always thaw frozen food. I know someone who lost an asian aro from a piece of frozen shrimp. Swallowed it and it must have dropped core temp because 5 mins later it was on the bottom, couple hours later it was dead.

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[Cichlaholics Anonymous]

In summary, your fish didn't get ich from frozen food

 

[zukiGS500]

Unlike us, fish do not maintain their internal temperature...imagine what something icy would do...


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Larger foods like shrimp should be thawed, but unless you are feeding frozen bloodworms to something that will swallow the cube whole, there is no reason to thaw it. By the time the fish can get the individual worms off the cube, they are close enough to tank temp.

 

[Ash]

I thaw mine out. I do however question frozen foods. I had a tank where water parameteres were fine, everyone looked great and it was all good. I switched up their food and thawed out some frozen krill (only frozen food I've fed) and put it in the tank (never fed them this before, first time - these fish always got NLS sinking pellets) and with in a few hours I lost a fish, I lost a few more over night and I kept losing them. I had 20 fish and by the following night I had 3, which did live. I dont know what it was, there were no signs of any problems or external issues/parasites and water parameters were still fine. I don't know if it was the food, if the food was bad or if it was just a coincidence...