What kind of lights do you have on there? You probably don't want any more light unless you add c02 though admittedly the wpg
rule is a little iffy especially in smaller tanks. You may just have to get it running and let the plants/algae tell you what your balance is.
I don't use c02 in my 29 at just under 2 wpg
(again... not a great rule but it's the best I've got... you'll need someone more knowledgable than me if you want to talk about lighting!)
I use all low/med light plants (listed in my profile) and instead dose with excel daily and do only light fertilization and root tabs. Works for me. Plants are healthy and almost no algae.