Yellowing leafs Too close to buds Help my babies!!!!

[Sir D]

If anyone can help it would be much appreciated!

scenario

2 600s, 4 18 gal bins filled with lava rock on the bottom and coco on top and 4 plants per bin.

food

flora nova bloom
floranectar sweetener


Im about 4 weeks into bloom using 900 ppm with about 750 of that the bloom and the rest sweetner. I use water from the tap that runs about 90ppm and let it warm up cause its a bit chilly at first. my run off is about the same and the ph is 6 to 6.5 its yellow which is good from what I know. Any help would be great!!!

This is My HK which is just starting to yellow near the budz and if you notice the tips of the plant are facing up which is happening throughout the plant.
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This is The skywalker which some of the other leaves are having the same effect as the hk where the tips are facing up. No discoloration just tips of leaves starting to point up. This pic has a loping effect which I dont know what is please help.
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[Sir D]

Is that top one just too close to the light I backed it off either way so.

 

[BudLove]

To be honest, these appear to be experiencing nute burn. The first pic shows leaves which are not only yellow (hard to tell cause pic is taken under HPS) but browning/burning. The 2nd and 3rd pics tell the tale as the leaves are very dark green and with the tips turning up/brown, that's a sure sign the mixture you have is too hot.

Try giving them a flush and then slowly introduce the nutes again... nute burn can take anywhere from a week to show signs of recovery - so give em time after...

BL

 

[Sir D]

Thanks appreciate the advice I thought I was keeping it low enough especially since a friend of mine was telling me that the hk out of skywalker and blueberry was soaking everything up no probs but guess its a lil different in my neck of the woods but thanks budlove ill do that

 

[Navigator330]

The last pic looks like it is getting way to much Nitrogen. Too much causes the claw effect and the darkness of leaves and purples the stems. Leaves should be lime green or a bit darker.... not dark green