I have a 56 gallon tank and I wanted to see what's the best option in changing the water.. I have a fish store that sells their salt water at $2/gallon.. Am I better off buying the salt water here? I don't have any fish yet or coral, just live rock and sand.. I have done my first water change.. I used tap water and added Aquasafe water conditioner.. I have the salt mixture which I have they mix for 24 hours before adding it to the tank.. Before the water change, it had been three weeks and all my levels were perfect. Now, all my levels are off. Ammonia, nitrate, nitrite. I wanted to know if any one had any suggestions.. Thanks!





