Hmm- the thought was that you'd swap out some of the mixed flower nute and replace with mixed veg nute- should have been clearer.

That res is kinda hot- ya might wanna dump it and start over.



I maintain my veg nutrient regimen through the first couple weeks of flower. Stretch growth has a nutrient use profile much more similar to veg than to later flower, but much higher/hungrier. I look for the highest EC of veg nute to be applied during first week of 2/12, with a similar dose week two. If a quicker flowering cultivar, might run the veg 10 days then go to a 50/50- depends on how things look.
(I know I said religious- but I'm Catholic- God's laws have exemption clauses. :wtf Would have to be like a six week done typa thing, though.



Really, I would get that mylar out from under the cups- even root contact is going to cause weirdness. You're not saving that much light. Metal toxicities will do all kids of weird things in a plant- and I have absolutely no idea what the combustion by products of carbon-bound aluminum are gonna be.

OK, man, so -

Take a deep breath
Pump out your res
Refill with veg mix or a 50/50 veg/flower mix, if that'll make you more comfortable. Mix by label volumes- it sounds like you've got a pretty good feeder there.

I'm still wondering about your pH- When you do the color test, do you use a non-hps light source? Do you hold the chart and the vial next to each other, in the same bright non-hps light, with a white background behind the vial? These tricks wil help you to get a more accurate colormetric.

Hang in there, don't panic... you'll get it back under control.