I have a rejuvinated plant about a year old total. About. 2 months into veg after Harvest. I use MG soil and nuts. But my plat seems stunned the leaf tips are dead and there is spots in the leafs as well
I bet it has to do with a salt or nute build up of some sort because it is a year old after all and re vegging.
Flush flush flush reg ph water then try low dose nutes and see how it goes...my 2 cents