Lighting can be done very cheaply for large tanks; just put plexiglass on top and hang a shop light on top of it. I wish I had a large, easily lit tank. Trying to get sufficient light for my 32 gallon without spending a fortune is next to impossible. I may have to stick with low-light plants (Which I'm perfectly happy with; I'm already growing Java Fern in massive quanitities in my Co2-injected 2.8 WPG 10 gallon tank). Soon the colonization of the tank will begin. Due to the unfortunate reality that fish don't live forever-especially inbred ones, I'm moving more from a tank suited to the activity level of Tiger barbs to one more suited for a few Kribensis and some guppies.