Not sure why it seems my girl has no light she have UVB on top of her enclosure and has natural lightI asked about where you live because depending on your location it matters if the cage is by the window.
I know that you are trying to add more plants…but you have a problem of too much water….so I don’t know what you could add to the cage that could stand more water than pothos. I think you need to provide drainage for the plants if you want to continue providing that much water.
As for the threads of dry stuff on the floor of the cage…still…giving you a warning that it could cause impaction if the chameleon ingests it…even by accident….and there is no easy cure for impaction.
If you keep using the incorrect UVB light it’s very likely that your healthy chameleon will soon develop MBD….unless the chameleon gets UVB from direct sunlight all year around.
Its still important to be sure of your chameleon’s sex for the reasons I mentioned.
Hopefully someone else on here will have the answers you want and hopefully you have a good vet ready for whatever health issues develop down the road…although I would hope for them not to happen because your chameleon will get the care it needs. Good luck.