Looks good however some black spots started to appear. Not bugs??

So I just started using the reservoir in the Bc northern lights Roomate and started using the drip system. And next day I noticed some black spots and they grew yesterday but some more black spots guys at bc northern said not to worry however. Seems odd i only have 2 and 1 is starting to have these black spots. Im just curious of what starts it. And how to avoid it..
Any help appreciated.

could be from too high humidity a better environment for pathogens

i have it around 80 degrees 50 humidity is that okay?

if your feeding it right it should be fine

I am using the General Organics Go Box for nutrients. Although I am using a 4.5 gallon res and using their measurements seems like so much for nutrients 1st week 25 mg of bloom which is like 5 tblsoon..

My Ph was about 5.1 when i put it in i checked it today it was like 7.1

0.0 i hear bad things about the GO line in hydro... try and keep the pH at 5.5-5.9... GH liquid pH DOWN and UP are about 0-5-0 and 0-0-5 NPK not P2O5 K20 so keep that in mind

Ph in the 7's

Update the leaves looked better they weren't as droopy they were standing more horizontial just still had spots now another half day later now they are drooping pretty bad my ph is in the 7's waiting for ph downer to come in i thought these Nutrients didnt need ph down or up thats what it says on the box. However looks like it does.

As you can see they are starting to wilt i cant ph until saturday night when i get my ph down from humboldt nutrients flavorful its called. This Go Box from General Organics says no need for adjusting but doesnt seem right as my ph is way too high 7 which BC northern lights guys believe is causing this plant to not be good.