So my plants have been in my tank for one month. The plants are as follows - 1) vallisneria spiralis 2)hygrophilla sp Quadrivalvis needle leaf 3)sagittaria subulata Vallisneria spiralis is also giving out some tiny bubbles and I got to know that this is a positive sign but from the last one week all three of my plants are rotting. I have led light which remains on throughout the day. What could be the possible reason? Thanks in advance. I'll also send some pics This is sagittaria subulata. The leaves are turning yellow. some black spots are seen on the leaves. Please help.