I have a 20 gallon freshwater planted aquarium. I've had it for about 7 months and plants have constantly died in it and the last plant renaming is some Green Temple. I have eco-complete substrate, pH is a bit high at 7.6 and I'm working on lowering that but it doesn't seem to ever go down with Seachem Acid Buffer. Ammonia is 0.0 ppm, nitrite is 0 ppm. Nitrate is 15 ppm. The tank is in my room so it might get more light than it should because I turn it off around 10 pm then back on around 7 am when I get up. I unfortunately don't know what light it is but I remember buying it at Petco because it said it's made for freshwater plants. There's three tetras and two siamese algae eaters in it. Over the months I've tried adding liquid API CO2 booster, Seachem Flourish, Iron, Nitrogen, and Potassium plus root tabs. Most plants died within a few weeks, but Green Temple is a fighter. The old leaves are darkened and weak looking, while new growth is withered and pale around the edges with green veins. Thanks for any input.