ezy33 said:You could use it as a sump and or a refugium. I have a 30 gallon connected with a over flow box as a refugium if i need to I can turn off the pump and it's separate from my system. If I need to treat with Meds I can move rocks and plants to my sump. What size tanks are you talking about?
Airgoose2222 said:How big will the new tank be? I would definitely keep a QT tank. I made the mistake of not using one and it bit me in the arse. Luckily, I had some spare tanks around to set up quickly to treat a couple fish with ich. If that's bigger than what you want, you could sell it and get a smaller one depending on the type of fish you're getting.