I 'm considering buying anubias plant already on some drift wood from AZ Garden would their roots eventually grow onto my gravel substrate? Would a liquid fertilizer or root tabs be good for them? I have two eight inch work lamp reflectors with cfl bulbs rated at 23 watts just inch or two above my 56 column tank. Lights are on timer for 8 hours, I have six raphael catfish, two featherfin catfish about four inches, two small warmouth sunfish, one blue gourami would this stock load produce enough ammonia, nitrates and nitrite for these plants?