My water level is too low I have no saltwater all stores are closed and I have no salt mix and my corals don't look too good. I took a gallon of fresh didtiled water and colested all the salt around the rim of the tank and placed it in the gallon container. And pored 75 percent of it in the tank. The pump is over powering the intake flow. Can I take Tavel sea salt and mix it with fresh distiled water and pours it in tank. Also I have no way of testing salt. No salt tester. Help plez what do I do