!!! Welcome to R2R @Tanner Martin !!! Looking at your situation, some fish are more hardiest then other specially when we are talking about inverts. Some people run their saltwater tank out of tap water of course using Prime like we do with freshwater fish tanks but is recommended to use RODI water with SW. Other problem can be salinity, if you don't have a ATO (auto top off) then salinity will go high and can kill those inverts and also the fish. Will be good to test all your parameters to see where is the problem. I started my first saltwater fish tank almost a year ago knowing nothing but this forum and a good experience members here give me a good push to learn about the SW.



