Yellow Leaf Dots Spreading Completely Over Some Leaves (It's not spider mites)

[Rusty Trichome]

A couple different situations and mediums. But you might want to ask a mod to give your questions their own thread.

Only pertains to flowering plants. The issue shows up at 6 weeks.

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...)FF Ocean Forest

Perhaps buffers in the soil are starting to fade at about 6 weeks. Kinda early for FF.

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting?RO-6.0
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...) drops into water and color match
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...) Dolomite if below 6

Ummm...what do you do with the dolomite? Most companies add dolomite to potting mixes to neutralize the ph to about a 7.0ish. Not sure it's recommended to adjust water with it, or sprinkle it on the soil. In an emergency, perhaps. but I wouldn't recommend doing it full-time. It will build-up. Did this problem start when you started using the limewater?

14) How often are you watering between feedings, and how much per watering?I water about every other day 2 cups or so, only when plants need it

Do you water till runoff appears once in a while, or are you really that conservative with watering? Gotta get moisture and nutrients to the lower root zones, and an occational flush to release built-up nutrients and salts helps too. (I do monthly mini-flushes. 1 gallon of properly ph'd water to gallon of pot size.)

17) What is your ingoing water's ph? ...your runoff ph? Have not checked runoff. 6.0 incoming

6.0 is too low, and nutrients will lower the ph further. Ingoing ph for peat-based mediums is between 6.3 and 6.8 ish. Pull it out of this range and you risk lockout or using-up the soil buffers prematurely.

I use Grandma's or Brer Rabbit unsulfered molasses at the grocery store. 1/2 tsp per gallon of properly ph'd water per week from 3 or 4 weeks into flower up until finishing flush.