As for the question from Saltysand, Ophiura Hit the answer right on the head! I did trust my lfs because she has had a tank for 5 years and doesn't test and her fish looked fine. She told me as long as I do a 10% water change every month I would be fine. Then I got curious to see other sw fish I could get because she is extremely limited on selection and extremely high on price, so I went online and found this site and now I am learning a lot! I am grateful to the people in here who are willing to help! I love my tank! Unfortunately there are only 5 crabs, 1 cleaner shrimp and my little bit of lr in it now cause I had to learn the hard way due to bad advice from my lfs which I assumed knew what she was talking about because she has sw tanks as well. Now I am working on my water, then I will be getting ls and more lr, later corals.. shrooms...polyps..so on and fish as well as more cleaners. First water and better lighting. I will also be transitioning everything to my 54 gallon bowfront with much better supplies before adding anything living. I intend to do all this slowly so my success rate is higher.