I've recently decided to take on the challenge of setting up a 90 gallon freshwater planted tank. I would like the system to be as easy and low maintenance as possible. I would like to use Flourite as a substrate seeing that I already have 3 bags realizing that I am going to need more. I have 1 T5 High Output Lamp again with the realization that I'm probably going to need another one. I guess my biggest question is on CO2. I'm not real familiar with use of CO2 so any advice would be appreciated. Again looking for advice on all 3 subjects.