Hello fello Reefers I have got a question on what I should do about my salt water. I have a 13-gallon Fluval Evo and I have been getting my water from my closest reef store for about a year now. When I first started to get my water I didn't never do any tests on my tank for calcium or mag or alk. I just had a pair of clowns and around January I got a few corals. I tested the water and it was fine and at the time I was using I believe ReefFlower Coral salt. I went to the Shop yesterday and now and asked what salt they used and they told me Instant Ocean which I have heard is not the best salt for corals. I also keep 2, 5-gallon buckets on hand so I can do my water changes but not have to go weekly to get the water. The overal point is, I want to have the best stability I can get and with them changing the salt brand, I want to know what salt would be better. There is another reef store an hour away and it's a really good store but the hour drive is what keeps me from going as much.