So I was gifted what I have since learned is an old Profecto 27 Hex tank and stand, and with a small amount of cutting I can fit a 10 gallon into the cabinet for a sump. Is this a good idea? From what I have read so far it sounds like oxygenating the water can be an issue with tall tanks like these so I am trying to work out what I can do to alleviate this. Trying to figure out where to start, so many questions, what to buy first...