I am new to the hobby, so simplicity is going to help my success. The less I add to my water, the better. It will be easier for me to maintain a balanced tank when I don't add stuff. We want our next fish to be Mollies, so this is very timely. I always heard Mollies need salt. I know we also want clown loaches, so I was concerned about hurting one or the other, in regards to the salt. Load off my mind.