I've just put a new fire shrimp in after a 2+hour drip acclimation.
He's not as active as the other 3 were though! As soon as I put some food in, the others ran around and jumped up and down frantically. My new one wandered out briefly last night but didn't seem particularly interested. Tonight, he barely moved from his spot on the back of the rock.
Do other peoples' shrimp go mad when food is put in the tank? Or do they just differ a lot? I hope he's getting enough food! No reason to tell really is there.