That's all you need to do. As long as you are not adding more fish than you already have,you should not have any problems.Instant cycle. Using old tank water is just going to add nitrates to your new tank. So there is no point is using the water. Keep the old media in your sump for a month or so,then it should be safe to remove it,or keep it in there,it won't matter.batang_mcdo;4004657; said:I'm planning to just transfer the existing filter media and fish from my 120 gallon into this tank, skipping cycling .
