Hi, my nep dont make traps, the tips burnt and the leaves become black, it takes like 2 weeks to burnt and the black tip goes trounght the leave.. any idea, humydyty day 50%-60% night 70%-90%, temp no light 70f-75f, light 80f-90f, i water she once a week or 2, light is the 2X20 yellow light, 1X15 blue bulb, 1 pl 13wats 2,700°K. i wait u help.