Acitinics are made for corals and not for plants. They are really not doing much of anything for your plants, I wouldn't even put them into the ratio of how much WPG you have. I would definately try to add another 13w T5 and change the actinic to a 13w T5 somewhere in the rank of 5-10k. That would put you in the range 66w, a much better range to be able to handle some plant growth. Those T5's are pretty bright as well. A good reflector will make them even more effective. I would try to make sure they have decent reflectors, and if at all possible even to get bulbs that have built in reflectors in them.
I know how it is trying to set up multiple tanks and having the funds to do everything I would want on them. One thing I've learned on planted tanks, don't cut corners. IMHO, I would hook your 29g up with better (proper) lighting before concentrating on other tanks. 2.3 wpg will be decent when all the bulbs benefit the plants. Also it will utilize that co2. As for right now the co2 is probably being more detremental than beneficial due to the lack of lighting. You will open up the ability to grow more species of plants once you up your lighting.
Member #6 of the Eheim Pimp Club - 2 Eheim 2213 & 2215 w/ surface extractor, LiquidDoser and Auto Feeder.