How long have you had your setup? How long do you have your lights on? And what kind of potting soil did you use? I use supplemental fertilization with my emersed growing trays I have no problem growing crypts and other plants into weeds. Also, most submerged growth will melt away while your plant is transitioning to emergent growth. Anubias don't really care about being converted to be honest if the humidity is kept up.
The Fraternity of Dirt #112