Hi everybody,

have one red & green lotus in my tank since approx. 3 months, both are growing exeptionally well, a bit to tall actually, not enough light (4x36w tubes)?, but what troubles me more is that immediately after every water change (weekly 25%) one or two leaves start to disintegrate slowly and are gone by the following week, when the next once just have emerged. Any fix to that? I do treat the fresh water with Biogreen from Dennerle and let it stand for 2 days before changing.
Thanks a lot