Plants seem to have brown spotting…rust?

[Tyhackett1]

Indoor

ILGM White Widow Photo Fem

Week 5 since sprout

Tap water 7.2 ph 170ppm

Water at 6.8ph and been getting between 250-600ppm in

Run off ph was low at 5.9 and I’ve gotten it up to 6.2

Run off ppm 690ppm

Using ILGM fert started using 4.5 weeks in diluted strength. Growers recharge once a week starting then and calmag diluted. Now I’m at full strength

Soil FF Happy Frog with 1/3 OF. Seedlings started in 50/50 OF/HF

Viparspectra p2500 LED (250w)

Temp 65-71F

Humidity 50-60%

Humidifier on 24/7 (fine low mist) it’s winter here and my grow space is unconditioned

6” exhaust runs 40s every 40min but has passive exhaust when intake is on

6” intake on inkbird

[alexankh]

the brown spotting is a calcium deficiency. your soil is getting depleted @ 5 weeks from sprout. time to start giving more nutrients and full strength cal mag

it’s very minor so you caught it early. good eye

[alexankh]

i’m gonna revise and just increase cal mag

[Tyhackett1]

Great. That’s what I hoped for too. I gave full strength calmag yesterday. Was hoping it wasn’t rust fungi or bacterial whatever. Thank you