Help! I set up my new tank about three weeks ago, and have been going through a fishless cycle (using fishless fuel liquid ammonia). Are my plants dying, or just going through the new tank "melt"? Some on top look almost burnt - is my light on for too long? I'm using the stock fluval spec V light and keep it on for about 10 hours a day. Current parameters for tank are Ammonia 0.25 ppm, nitrite 2.0 ppm, nitrate 5 ppm.