I never had shrimp, but when I lived in Los Angeles in my parent's house they had a water softener. I had a number of tanks and several kinds of animals and plants. I had African Dwarf frogs, corys, tetras, loaches and a few tree frogs and bettas as well. They all lived for all three years I was there. I had to give them away when I moved. Someone on here got them all. This is the kind they had http://www.lifesourcewater.com/green_home_view_case.php?greenhome_id=2 Hope that helps.