BioBudsanswered grow question 3 years ago Hi man, bend those bus down, they are stretching, either part of this breed, but I think its that your lights are too far away, to low. They go stretching for light. Just bend them down or use net to tuck them under!! They look healthy! 20 cm is too close even for the TS 1000. So something else is wrong. I think that the light is not big enough for the room or is not running on max power for some reason. Remember that those boards with the older leds run on 80% capacity after two years of running, going further down every year.