Getting out of the hobby and looking to sell my marineland overflow box with a 20 gal sump. Custom built baffles into it and kinda created a sump/refugium... Live rocks and sand still inside with a ball of chaeto. great setup, was used on my 75 gal reef tank without any problems or leaks. Let me know if your interested- call or text me 917 929 2801 for Steve... Price is $150- much less than what youll pay anywhere else. Dont PM- call or text. Thanks!