Hi and welcome to Tropical fish keeping!
First off I will say I nothing about LEDs soo I will leave that to others. There are few here that use them soo hopefully they will step in and give ya some advice on them.
On to the question I do have.
Do you fertilizers of any kind at all? Didnt where you mentioned if you did. All aquatic plants need a certain amount of nutrients to thrive. There are a couple out there that are a well rounded fertilizer. Seachems Flourish Comprehensive is one. I personally use this one as I can get it locally. The other is Brightwell aquatics florinmulti. I haven't used this one before but have heard it is just as good.
First off I will say I nothing about LEDs soo I will leave that to others. There are few here that use them soo hopefully they will step in and give ya some advice on them.
On to the question I do have.
Do you fertilizers of any kind at all? Didnt where you mentioned if you did. All aquatic plants need a certain amount of nutrients to thrive. There are a couple out there that are a well rounded fertilizer. Seachems Flourish Comprehensive is one. I personally use this one as I can get it locally. The other is Brightwell aquatics florinmulti. I haven't used this one before but have heard it is just as good.