Showed up weekend

[21jfong]

This is the first time i have noticed these, theyre very small, about the size of a grain of sand and they move very fast. theres lots of them in the corner of my tank. they seem to have legs and two antenna. If anyone could help identify them I would greatly appreciate it.

 

[Fishfreak2009]

This is the first time i have noticed these, theyre very small, about the size of a grain of sand and they move very fast. theres lots of them in the corner of my tank. they seem to have legs and two antenna. If anyone could help identify them I would greatly appreciate it.

Those are amphipods. Harmless scavengers. Most fish will eat them