A local reefer is selling his 270 gallon 7x2x2.5 tank. The dimensions aren't exactly what I was hoping for but it's less than a third of the cost of buying a new tank. I havent looked at it yet to check the silicone which will obviously be a factor, but what are your opinions on a 30" deep tank and dealing with lighting for a mixed reef? It would put me in to my armpit at the front glass and worse trying to reach farther back in the tank. Is it worth the hassel or worth using a deep sand bed to counter those problems?