over the past year i cant even count all the times i overflowed my refug under my tank in the stand. which damages the stand and the hard wood floors. when i upgraded from a 10g refug to a 20g i put a large piece of pond liner in the stand. stapled it 4 inches high all the way around. was the smartest thing i have ever done becauase one of the homemade dividers was too wide and cracked the tank that first night. all i had to do for clean up the next morning was suck the 10 gallons or more up with my shop vac.