pbassdude

I'm a newbie with plant tanks, but have been keeping fish for over 30 years. Anyway, I have a 240 gal. that measures 72"x 24" x 31". It's drilled, and has two 1 1/2" overflow boxes. This tank held some large SA fish for 3 years that have been sold or given away. Well, all except 2, which will be moved to another tank soon. I want to make it a planted tank of sorts, with several large sword plants, driftwood, and add some of my Discus collection to it. I thought of using a good planting substrate for the swords to grow in, then cover the bottom with pool filter sand. This tank has a 55 gal. filter sump with micron rated filter bags, and several gallons of SeaChem Pond Matrix bio media for filtration. It also has drip water change, which is turned off at the moment with only 2 fish in it. I'm leaving the fish in the tank at the moment to keep the filter cycled. Lighting on the tank now is a 2, 55 watt AH kit. It was fine for fish viewing, but won't be for swords I'm guessing. I never really liked it on this tank anyway. I was thinking about reefgeek kit using Giessman (spelling) 6000k midday sun bulbs.
http://www.reefgeek.com/lighting/T5_...bs_by_ReefGeek
Would this lighting keep the swords happy with good substrate and root tabs added, or just make an algae mess? Would 2 bulbs instead of 3, or even 4 work better? Or would MH be the answer? Would CO2 injection be necessary? Sorry to ask what I'm sure seem like stupid questions, but I've read until my eyes hurt, and I'm more confused than ever! Most of the info out there seems to be for smaller tanks, and I'm finding out that the "rules" for lack of a better word, change on larger tanks. Any advice you can give me will be welcomed. If anyone is interested, I'll post some pictures when I get the tank finally going. I am really enjoying looking around this forum. Some real planted tank experts around here.