Patience is the key here and believe me I know it is hard. Really hard. I have been fish keeping now for a dozen years and started keeping planted tanks about three years ago. I still have problems and I cannot grow anything I want even though I upgraded my lighting. I would suspect that the lighting you are providing just is not sufficient enough to see the kind of growth you want. Of course the solution may be to add a little more lighting. It does not have to be much and may be as simple as adding one more light fixture over the tank in the proper spectrum.
Hang in there! I know you can do it. If I can do it(and I have in three of my tanks) then you can too.
Marinemom
Hang in there! I know you can do it. If I can do it(and I have in three of my tanks) then you can too.
Marinemom