1st grow, think something going on

[JWidow7]

-What strain, - GSCE Auto (ILGM)
-Age of plant - 3.5 weeks
-Method: Soil FFOF
-Vessels: 3gal fabric
-PH and TDS of Water, Solution, runoff RO water PH 6.5ish run off has been 1700 on avg
-PPM/TDS Botanicare cal-mag 1tsp per gallon of RO water
-Method used to measure PH and TDS digital meters
-Indoor - AC Infinity tent 36"x20"x63"
-Light system - two Vivosun Vs1000’s @ 24" height at 75%, par now at 550/600 at canopy
-Actual wattage draw of lights
-Current Light Schedule 18/6
-Temps; Day, Night 78/80 day 72 night
-Humidity; Day, Night 56 day night unsure
-Ventilation system; Yes, AC Infinity cloudline t4 two clip on fans in tent as well
-AC, Humidifier, De-humidifier- in my bedroom AC control house, have a humidifier and dehumidifier on standby if needed
-Co2; Yes, No

Planted straight into FFOF, from what I’ve read I’m under the impression the soil has enough nutrients to carry these into week 4/5, these sprouted on August 5th. Spotted these two spots yesterday and they have progressed overnight. Read all night yesterday on what it could be and I’m totally confused now, but I have found a few pictures that looked like it was pointing to a cal-mag deficiency. I have been watering every third day, that seems to be when the pot is light and the top inch of soil is dry, each pot gets 1 gallon which gives me decent run-off to test PPM and PH from. I just watched a friend finish his first grow and he chased deficiencies from 4 weeks in to the end, so I’m paranoid I’m at that critical point and don’t want the issues he had. Hopefully the pictures I’m about to attempt to post work…

[Starless]

Welcome
Plant looks fine to me, maybe could have been water drops?

[JWidow7]

Thank you, I was unaware water droplets could cause something like this, then again I’m unaware of a lot when it comes to this, I’ll have to research that.

[MrPeat]

Welcome to the community.

[JWidow7]

Thanks

[Covertgrower]

Yep, probably water spots, welcome!

[Dhamm350]

Water drops can act like a magnifier lens with the light causing burn marks.

[JWidow7]

The spots have not progressed and everything seems ok so far, I guess I have to be more careful when watering, thanks to all for bringing this to my attention.

[JWidow7]

Now on day 34, I think this is “Pre Flower” they are getting very bushy, I’ve read about defoliation and think I could probably benefit from it, however I am wondering if I am too late because of the stage they’re in now, don’t want to cause any stress and hinder growth, thought’s?