I know right.
I had this on my salt system in line before the 120g breeding racks. I had the 57w one but I think if I remember correctly that's way overpowered for fresh water I'll have to go look at the website again. Mine was the classic. It was under powered for the entire system but I was using to keep the babies safe from anything that mat have been introduced. It was over powered for that part of the system but since all the water in the system was going to go though it eventually I decided to get the strongest one I could reasonably afford. There was never algae in the breeding rack. Another issue in salt water is pest anenomies those also never reared their ugly heads in the breeder rack.
Really. I put my 24/7 on just to see if I liked it as the 6 par 38s are cooking plants near the surface. It was really dim at the bottom of the tank looked as if the 2' depth was to much for it.
Yea Ill have to take a look back at the UVs but it will be a project in due time. But the 24/7s are bright. I love the look and the shimmer it creates in the tank and reached the bottom of my tank thats 30". But with that said if you run the 24/7 feature thats a lot of light all day creating alot of algae that I have found out