Auto orange apricot glue xl indoor led

I have some issue's whit the plant, tips twisted and purple brown color, now I'm thinking of light problem or nutrient, I ask some questions about the light I'm using, waiting answers but I'm thinking more about nute problem I don't know I'm trying soon to feed because I think their are hungry, if someone have some advice thanks, and sorry for my English. Light are sett full power at 40/45 cm distance from canopy and I have 2 add light UV 30 marshydro, I take them on 5 minutes at the start of every ower of light. I'm a beginner, I do other 2 times before that, and I have bad result in taste smell and weights I'm desperately try to get something really good by myself, and I spend a lot of time and money, please help me