Aqueon Shrimp Essentials Shrimp & Crayfish Freshwater Aquarium Trace Minerals
I don't know if this stuff does anything, but I regularly put it in the tank with my shrimp per the directions. And they haven't died! So, I guess it's at least not bad for them! In all seriousness though, it was recommended from a friend so I've just kept using it. The only complaint I have is that the bottle is so small and my tank is so large, to give the correct dosage, the bottle is gone after 3 doses. It's expensive, but I would pay more for a much larger bottle.
I think the product is good. I purchased it because we lost one of our pet crayfish during molting a little while ago. Haven't had any losses since, but the two crayfish we have left are younger so probably have an easier time to molt in general. My issue is mainly with the amount of product. It says to dose 5 ml per gallon of water, I have a 10 gallon and a 5 gallon aquarium, and do 30% water changes twice weekly, so this bottle went fast.
Added justvthe right amount of minerals for our crayfish