30-40 times turnover is overkill in a fowlr
, I would go with 2 1000-1200 GPH
pumps. I ran 2 1050 and 1 1200 on my 55 and it was good. I used the natural wave maker power bar and it was nice, easier on the wallet than the hydor one and works the same way with the addition of a 3rd controlled outlet. Sand blowing around wasn't an issue either and on that note I would caution against using maxi jets as power heads as the suction cups are horrible and the powerheads can fall down. They do have an arm to hold it also but it is short so you have to have the pump up high to use it. Honestly from personal experience the koralias are good pumps but I would avoid the wave maker as contrary to what hydor says they don't work very well after a time. They will start trying to spin backwards after a while which is dealt with by a rubber bumper but I found with mine that the bumpers would break off eventually and then it will start backwards frequently. If you can afford it look at the ecotech pumps. I got some a while back and they are AWESOME. Expensive but worth it. One mp40 would have your water churning like mad, or a couple mp10.