you could always spot feed ur future fire shrimp if you decide to get one. I have a 75 with a fire shrimp and try not to overfeed my fish. So next to no food falls down for the shrimps. So when i feed my anemones some shrimp, i cut up some rice sized pieces for the fire shrimp, and my coral banded. My cleaner shrimp is smarter and hangs out by my overflow during feeding time and grabs any food that floats towards the overflow so i don't worry about that guy.
that might have done it.. just top of with ro water and u should be fine..Quick update on the fire shrimp situation...being a beginner..I wasn't aware that you also need some fresh water to balance out all of the salt. I was topping off my tank with saltwater and so MCF speculates that's what did the shrimp in. Now I know!
That's the other thing...I think my hydrometer is on the fritz because right before I took in my water sample I ran the salinity and it said it was just above average...but at MCF it was through the roof. They gave me some tips on how to tap the hydrometer to eliminate air bubbles etc. Might have to get a new hydrometer...Glad you figured this out.Like I said in post above check your salinity.