if you grow waterhigson or duck weed but if you want submerged plants and you add some sort of addetive the water will green up in my opinion but try it and let me know how it goes. I dont know if you gat the money but maybe a good uv filter. ive don that to get new grow on plants that i collect in the wild and have detritus growing on the leafs. the lack of nutrient seem to make new green growth on the tips of the plants of which i cut and take to the meetings. but also i chage the water contentle with tap water that kills the snails and makes the water clear.