Great thread. Lots of good info.
I have a 55 gallon that's running with some java fern and 1 goldfish as a temporary resident until I decided what to do with this tank. I've decided to go back to tropical fish and do a serious planted tank.
Would 4 or 5 domes with 23w 6500K CLF spirals be enough for a serious planeted tank at the 55 gallon stage or is this only suitable for smaller tanks? I DO plan to do pressurized CO2. I want the full deal, but would love to be able to do the lighting dirt cheap.