Lights, 440 watts VHO
flourescent. Open the canopy when the lights are on, and geeez! you feel like you're being blinded!
This driftwood is very old, was sunk in a lake for years, I guess. Never the slightest hint of tannins, so I'm really not sure how much tannin there is left to leach into my water. Come spring time I'll be adding and/or replacing some of the drift wood, I have some cooloer looking pieces getiing waterlogged right now.