WHAT IS THIS?

[RenTheReefer]

I got a shipment of amphipods through rusalty.com and this came with.

 

[kharmaguru]

I got a shipment of amphipods through rusalty.com and this came with.

Sea pill bug. No idea if it is evil but it's a type of isopod.

sea pill bug - Encyclopedia of Life

Invert-E-Base Portal - Sphaeroma quoianum

 

[Reefing102]

Agree. A type of isopod