Potassium deficiency??

leaves started turning bright yellow/brown on the edges only on new growth. old growth is still healthy looking some with tiny brown tips. problem started when i switch from Foxfarm to general hydroponics ferts(floragro, floramicro, florabloom). used about 2/3 of what is recommended for feeding chart.

current setup is ebb/flow(40 gallon res) with 400watt MH, Ph is at 6.0-6.2, PPM is at 1110, this is vegetation growth as well.

Any answer and solution would be greatly appreciated. not sure what to do at this point

Looks like some overfert to me & I wonder what your temps are

Looks like it could be K deficiency. I've read that too much calcium and nitrogen can make it hard for plants to absorb it. You may want to ease off on the grow (nitrogen) and micro (calcium) and increase the bloom (potassium) a little bit. I don't know. I quit using Fox Farm cause of the calcium deficiency and quit using GH cause their feeding chart is not really tuned in to the species of plants I grow. The nute company I use now works great and I have no deficiencies so I dont have to worry about this stuff anymore. Good luck to you. Let us know if and how you solve this problem.

Took some readings on my temps in the tent was 78 low 88 high. i will try to lower the temps with more exaust and will also flush when i get home to see if that helps a bit. will use half stregnth solution and see how it goes. will keep u posted!