I keep having trouble keeping plants. They always seem to die in at least two to 4 months. I am usually very good about turning on the light on for about 6 or 7 hours a day. When I do a water change put API plant food in the tank. I have noticed that the plants seem to get algae on the top part of the leaf and die or I even on one plant have very short stringy algae. My stock list is in signature along with filtration. My substrate is a mix of argonite (or something like this), pfs and some gravel. I checked my water quality recently and my ammonia, nitrate and nitrite are all at safe levels. I will have to look at my lighting so I can let you know what wattage and bulbs I have.