Need help identify these hitchhikers

[renatoi]

Caught a few of these in my filter. Most are small but this one was probably 3/8 inch.

What are those? Pests? Copepods? Shrimp Larvae?

Any help is appreciated.

 

[Eagle_Steve]

Caught a few of these in my filter. Most are small but this one was probably 3/8 inch.

What are those? Pests? Copepods? Shrimp Larvae?

Any help is appreciated.

Gammarid amphipod. Good guys. Food for fish and eat detritus.

 

[G Santana]

Amphipods, good free food for your fish

 

[renatoi]

Thanks everyone!