Yellowing tops

[Wizzeed]

okay I’ve got a plant that has been recently defoliated. Just the tops are turning yellow. I use botanicare grow nutes and a 1000 watt LED. Any ideas? All help appreciated.

 

[KneeDeep34]

You have more issues than you think... the leaves are dark and stems are purple aswell.... I suspect over fertilizing... the new growth looks burnt.... just flush your pots.