you will get many different responses on this...a bta will live under PC lighting but it will not have optimal conditions. I have had them under both pc and mh and honestly i can see a clear difference between the two. Under mh feeding is not as important because they will get plenty from the light. With PC lighting you will need to feed more. I also saw much better coloration from my nems under mh lights. Im sure others can give more specific details about this.