 growlights.
My mom's been on me lately about the amount of electricity my room eats up (PC on 24/7, lights on two tanks, plus CFL growlights for my plants). What I've been thinking lately is finding a way to get the most out of some new T8s or T5s (fluorescents like you see in a workshop, the big long ones), and maybe a couple new more expensive growlights. I was thinking about getting a nice decent sized (STURDY) table, and keeping present and soon-to-be tanks on it without hoods (screens though, or maybe plexiglass), as well as my plants. Then I could just hang 3 or 4 fluoros and a couple high powered lights over the whole shebang. I'd still have a bunch of CFLs (compact fluoros) scattered across and around the table to throw more light where it's needed. The Ts would be anywhere from right above the tanks to maybe 2 or 3 feet above them depending on plant growth, whereas the MH or HPS would be kept quite a bit higher above the table, and at the same height at all times (because of A) heat, and B) they dont need to be as close asfluoros) I could use some help though with a couple thing.
First off, which light is better for aquarium plants, metal halide or high pressure sodium? For my plants I was going to order some MH bulbs. The reason being that MH seems to works a lot better than fluoros or HPS for the later growth stages of plants, whereas for initial growth I've always found HPS and to a lesser extent fluoros were better. My question is will using one or the other (MH vs HPS) be detrimental to my aquarium plants?
And will the combination of fluoros AND whichever other bulb I go with this time be too light much for my fish to handle? | 
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