Ok so I bought my tank a about 3 weeks ago and it has been cycling for about 2 weeks now. It is a 75 gallon with a wet/dry system, standard T5 lighting, 25 lbs of LR, 4 inch deep LS bed, a 9 watt UV sterilizer (obviously not running yet), and I will get a protein skimmer shortly. I have a couple ideas to secure the top and make it look pretty nice...but my concern is most likely the easiest part...the tank is drilled and it has little slits in the corner unit and about a 1/4 inch to a 1/2 inch gap between the top of the tank and the top of the drilled corner piece. Will both of those have to be cover? If so what do I use and how would I go about making sure it stays attached? lol Also at first I was going to get a Bimac...the only problem is I live in Florida and i have a rough time keeping my reef and FOWLR tanks around 75-78 degrees during the summer (i have to leave all the tops open and a fan on my 150 gallon), clearly I can't do the same with an octo because he will escape. My question is what would be some other options for a 75 gallon tank other than a dwarf octo? I really like the Bimac but realistically I don't want to spend the money for a chiller. Is is really REQUIRED that the temp be in the low 70s or will they be able to adjust (like fish) and live a healthy life?