Dont know if these are bad for my tank or not.

[FallenRedeemer]

So today I took off my breeder box to clean it and get it ready to try and breed some shrimp and I noticed these small white looking things on the bottom of it that move around. I am not sure what they are. My thought was they might be little baby snails cause I have a couple snails in there. They are the pod snail from getting plants. But I'm not sure and I want to make sure that all my fish are going to be ok and it's nt somethig to worry about.

 

[Mumma.of.two]

This might help you ID them.
http://www.planetinverts.com/what_is_that_bug_in_my_aquarium.html