I'm building a stand now and think it will need some ventilation. I've read the threads I could find here and have a few questions. I see that computer fans are common. For a 40g stand, would 2 in the back work? The heat under the stand would be from the return pump and the refugium light (hopefully led, I'm just planning now) Also, should one blow in while the other blows out? Finally, is there a bigger fan that would be better? Thanks in advance for your help!


