Frozen Fish Food- Does it expire?

[InsaneClownFish]

I have a bunch of frozen squid, mysis, rotifiers etc etc. that have been sitting in my freezer for quite some time. Having had a small system for quite some time, I went through these very slowly.

I would cut the cubes into pieces and ziplock bag the leftovers.

My question is twofold:

1. Since there is no typical expiration date on this type of frozen food, is there a recommended replacement period?
2. Oftentimes some portions of the food will get freezer burned. Is there any issue with feeding food that is partially freezer burned to the reef?

 

[xJake]

If the food is kept in a standard refrigerator freezer which allows them to thaw and refreeze then they only last for about 6 months maybe less. Nutrients within frozen food degrade quickly when allowed to thaw, so it's best to keep food in a deep chest freezer. If you keep the foods in a deep freezer which keeps them frozen for good, then they stay good for well over a year or longer. I have fed freezer burned food to my tank with no problems, and I can't really see any issues with doing so other than it may not be as palatable or nutritious. It's hard to prevent freezer burn even with ziploc bags, and I don't really see much issue with feeding food that has freezer burn.