Whats wrong with these ?

600w hps temps around 27c rh 45-50% ph 6.0 ppm 950.Coco, Dutch pro just switched to the bloom version as put them into flower Saturday I fed them yesterday and looked In this morning and saw the leaves like this I normally water every 2 days or when pots are dry and light
 

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With the yellowing and the rust looking shit inbetween on the leaves I'd say mag/cal being locked out due to overfeeding/ph in medium. It'll get worse fast as the plant needs alot while starting to/while flower(ing)
 
Holy fuck. It’s easy to reset your coco to the proper EC and ph. Run a heavy feed of your nutrient solution through it , then keep that EC and ph where it should be by feeding daily.

Your plant will get worse before it gets better, give it a week.

Best of luck and LETS GO OILERS!!
Thanks ill give this a try much appreciated.
 
Holy fuck. It’s easy to reset your coco to the proper EC and ph. Run a heavy feed of your nutrient solution through it , then keep that EC and ph where it should be by feeding daily.

Your plant will get worse before it gets better, give it a week.

Best of luck and LETS GO OILERS!!
Hopefully you won't be disappointed like the leafs left us in Ontario. Leaving Toronto on sat was messy. Everyone was super angry lol
 
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