biocube lighting

[michika]

I have a 175w MH on my 18" high 25g nano. I get good growth and coloration. I would recomment the higher wattage for a MH, as I find I am usually happier with it in the end.

I've never had a heat issue with my lighting, all I have is a pair of fans on my hood and its all good. Granted it isn't a biocube tank, so I can only chime in so much.