Son of a Diddly!
Well, has anyone else here had any success growing plants at wattage this high? I guess I can rework my lights on this tank to include 2 ballasts, each with a separate bulb, power supply and timer. It'll probably cost me another 36w ballast that I'd planned to use somewhere else and a power cord but, I'm afraid that this is too much light to get any vertical growth. I never thought I'd say that! I've yet to have to prune either my rotala or stargrass and its been about a month! Very healthy but, stunted and very compact. Of all the reasons to have to rework your lighting. Too much!!