I transferred everything from my 125 gallon to my 250 gallons in a course of 3 days, a few fish at a time.
Run at least one of the old filters on it for about a week before doing away with all of them, just to be on the safe side. Also, if you can, move the bio media from the AC110 to the new filter to help establish bacteria. Should be good to go immediately, get a bottle of Stability to help the first few days as well. Also depends on how heavy you are stocking the tank.
You can use a new tank immediately. There's no need to wait.
+1
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I've done a tank transfer a few times, I kept the fish in a fish box box and run my filter on it while I took the old tank down, filled the new tank up got it up to temp threw the filter and fish back in no problems, most of the bacteria you need is in the filter not the water
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You can use a new tank immediately. There's no need to wait.