For me, running 3 x 400 mh I have 2 x 80 cfm fans cooling the fixture, although they are only 35 db, if they turn on after I get up, it is almost unbearable. I use a bubble king skimmer which I consider second noisiest in the tank, follow by the anti siphon holes on tank water return pipe. I also use a red dragon 1200g return pump. The absolute best investment I ever made, ultra quite, super performer, very happy with it.
|