Hey
@Baywe not sure how I missed this thread but if you need some help growing with Gaia I've got a journal going and a thread with a somewhat detailed growing guide in my signature.
A couple things that I can see from quickly skimming the thread as best as I can:
-you are using soil with premixed nutrients for veg/fruits, it says up to 3 months worth. This is bad. Very bad.
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-Perlite is organic and you want to have a good ratio of this in your soil mix for proper aeration
-your day temps are very low(25) try to get day time temps up towards 28/30c
I do believe your initial problems were from the hot/pre nutrient mixed soil, especially if you were adding GG on top of the already hot soil. Improper watering techniques and just not an ideal soil mix for cannabis compounds those issues.