I have around 3 inches of eco-complete substrate. Plants are :melon sword , narrow leaF CHAIN SWORD , KLIENER BAR SWORD , COBAMBA , BALANESE , JAVA FERN, ANNUBIAS. I have been running the lights around 6 to 7 hours a day. But I just put plants in a week ago. Water perameters last night were o ammonia , o nitrite , 5ppm nitrate.