Well let me give you one piece of advice....be very carefull with Marineland DD Tank. I've been reefing for 32 years and in 32 years I had many tanks of different size....in 32 years I had 2 leakage...both of them happen in the last 3 years, both of them were Marineland DD tanks (200DD) Both tank were perfectly leveled and in both case a Silicon Seal blew. First Time we were lucky enough to catch the leakage kickly enough to prevent house damage but lost all the fish and corals ontop of the tank.....second one turned out catastrophic....it hapen overnight we were woke up by the smoke from the fire....cause the leak was large enough for the water to spray all over the back wall and created a electrical short in the outlet that cought on fire....we lost not only the tank but livestock, corals, apex controller etc.....house damage was huge, floor to replace, wall to be redone, electricity repair...and the list goes on and on....total cost....well not sure yet because after 2 months it's still not over...and Marineland insurance rep....Liberty Mutual is a real PITA to deal with.....Our house insurance even hired an Engineer to evaluate the tank and their report is saying that the tank is at fault, bad silicone.....so my advice if you want to waste your time and your money.....get a Marineland Tank....because they have mastered the art of screwing up big time.