Trying to get an idea on what the best salt choice would be for a mixed reef tank. Ive heard stories about reef crystals and IO salt leaving gunk in your mixing buckets so I stayed away and had tropic marin salt. But with the economy these days would like to save a few dollars so just want to get an idea of what most people use. To start up my tank I used IO salt sonce theres no corals but to maintain parameters do most people just dose? Or they buy top quality salt?