My tank is ~ 29-30" of water between the substrate and surface (36" tall tank) I plan on adding enough "Lumens" to meet the low light requirements but I only have 2 26w 6500k CFL's right now (thinking of 2-4 more 6500k cfl's or maybe getting a 36" 4tube T5ho strip). I don't plan on adding CO2 but would like some real plants instead of plastic plants and I would LOVE to find some that could possibly grow to at least 18" tall (half tank light). I'm only looking to put a few small groups in with no heavy planting and I have north american native species in the tank like crappie, LMB, and sunfish.