<a href=showthread.php?s=&postid=6691338#post6691338 target=_blank>Originally posted</a> by rudereefer
My tank is 400 gallons, 25 high, 30 deep, and 10 feet long....
I would suggest a UV, it realy cleared up my tank, with that much water ya kind of need it you can get quite a haze in a big tank... I have a closed system for flow, with a Sequence pump that pushes about 7500 GPH drawn into an intake basket in the bottom center of the tank, then it splits 6 ways.... This huge Sequence is the reason I need a chiller.... it produces so much heat, its rediculous...I am now taking it off, and putting two smaller ones together...I had a brand new Aqualogic chiller, that QUIT WORKING one day when I was'nt home, and the water reached about 100 degrees, and fried about 65 heads of acros....I run sixteen, four foot VHO's! and have no problom growing SPS's, as long as I run fans in the hood, the light barely heats up my tank... you may not even need a heater....I have two overflows, just 2 inch holes, one with a basket, one with an elbow for now, (to adjust water level) and they run down the back into my two 55 gallon acrylic sumps, with micron bags over the pvc tubes...it works just fine. These are older shots of the tank, I will post some recent ones soon. Oh, and Aqualogic can give a crap if their product fails and you loose everything.....my next step is a bigger skimmer, I've neglected that for too long (mine only goes up to 350 gallons, but still does a good job as long as I do my water changes) If I could do anything different, I would have given my self another few inches away from the wall...I'm pretty happy with the whole thing....