New grow style, bit of issue

My first run in autopots filled with growpito, having an issue with a few. Appreciate some guidance to help me straighten it out?

4x4 tent, HLG 600 Rspec at maybe 50%, ph 5.8, 400ppm Mega Cop 1 part, temps 76-80F, RH in the 30’avg…

I realize humidity is low, and I’m using a 3 gallon humidifier that struggles to raise to 50%. Winter is almost over I’m hoping to invest in a better unit this summer.

I have been seeing ph upswing with last full reservoir… their first. Got as high as 6.3 before I got to checking it… maybe 48 hours.

I’m guessing I’m looking at a ph fluctuation issue, and it’s more pronounced to the particular strain. Effected are two G-Unit from Tony Green, GG4 S1 seems to be chugging along fine.

Thoughts?

Appreciate…

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I think hungry. when I ran MC I was neared to ec 1.3 over water baseline with ph in 6-6.3 range. worked well.

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Ph 5.8 is a bit low try raising it to 6.1/6.2
I don’t run auto pots but I run octopots similar wicking system
Mapito wow I always wanted to try it in the Octopots I’ll be watching
It seems the low ph is causing the issues imho
The 400 ppms is fine you could raise it a bit at this stage
This is a good guide to go by

Mega crop another salt guy me to but I use jacks

Add calmag to you feed I use jacks 15.5/0/0
But not too much and stop going to flower

A cheap way to raise Rh place a bucket with water and hang a towel
it with one end in the water lying over the edge

Peace
Paps

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