HELP! Having problems with gelato

[6strong76]

Not sure what’s wrong yellow bottoms but every time I fertilize even 1/3 the strength tips burn stunted growth

 

[9fingerleafs]

looks like those plants are overall hungry, yellow leaves, browning edges and purpleing stem are signs that the plant is not absorbing the nutrients, is your ph in the correct range? if it is then you need to feed more

 

[6strong76]

I’m using flora nova grow 7/4/10 there 4 weeks old ph is around 6.0 every time I fertilize tips burn just finished flushing 5 days ago nervous to fertilize again

 

[6strong76]

When I fertilize tips burn at 1/3 strength ph is around 6

 

[9fingerleafs]

that is not tip burn from too high EC, that occurs only at the very tip of the 3 largest fingers on all leaves equally, what you have is browning/burning edges caused by lack of phosphorous or potassium

 

[9fingerleafs]

https://www.growweedeasy.com/potassium-deficiency-cannabis

 

[6strong76]

Thanks! I will give them some more nutrients.

 

[stump]

What is your medium? if soil I would bump it up to 6.5