I'm hoping to get some assistance with a new issue I now have. I just purchased my first MH light and am in the first week of using it. It's a 250W and my tank is 41G. I've been advised to run it 5 hours a day for the first week or two. My clam likes it and has turned to directly face the light.
My issue is, I am now seeing algae forming on my glass. I did not have this problem with the two t5's. Is it a good thing????
Thanks,
goodgreef