Picking a carpet
I'm setting up a 30 gallon tank, 30" x 12" by 18" high. I have the option of using 2 X t12, 2Xt8, 2x t5, or 4xt5. I can't use CO2 because I care more about the shrimp that will be in here than the plants, and don't want to possibly gas them or anything. Don't try to convince me, please. Anyway, what kind of carpet plant could I conceivably grow? Small amounts of algae are ok but would prefer not to have lots of it.
I've looked at glosso, but I think that needs CO2. I like Marsila minuta but it grows super slow apparently. Is there a nice mixture of growing moderately fast and not needing CO2?