That is very interesting. Have you thought about starting a riparium instead? You could use a closed top tank to maintain the high humidity, probably not as high as you now have, and keep something like crypts in the water below. The anubias would do very well on riparium rafts, and you could use bigger crypts, for example, in hanging planters along the back.
If your goal is to just "farm" plants, to use in other tanks, or to sell, then you have the right setup for it, but if you also want the tank to look extremely good, a riparium would be a great option.