New Nano Saltwater

[Loraloo]

Hi Everyone,
I was looking in my saltwater tank the other day and I noticed little shrimp like creatures that I didn't realize were there before. I don't know if they're actually shrimp, but they have little tails that curl down like shrimp tails do. They're kind of translucent and maybe 3 or 4 mm long. The only thing I have in my tank right now is live rock and my aragonite. I've had my cycle and already have lots growing on my live rock.

WHAT ARE THEY?!!?!?!

[Tyler.L]

amphipods they're harmless