Send an Ambulance

Y'all this is my first photo bc I got sent the wrong seeds. I’m into week 5 of flower and getting these spots. Send help pls! White Widow DWC grow. Mars hydro Ts1000, general hydro FloraTrio, calmag, and hydroguard. Temps flux during day between 70-82 and night between 66-70. Rh% was at 38 bc my damn monitor broke so trying to get that up. Water temp 60-75. Ph 5.8-6.2.

I've never grown DWC but have only read a bunch. Those spots look like a pretty severe calcium issue though.

If you're using tap water, cut the cal mag, might help?

Keep your rez temp under 70.

I think your problem is too much cal/mag locking other nutes out. I've never used Cal/mag.. Ever!

I can only imagine there would be less issues if the ph was kept at 6.. or 5.8.. or 6.2.. keeping it in the window could mean it swings back & forth all day. Keep it steady.

- Just a little insight.
Probably won't help your problem.. or could it?

When you use calmag, are you using the dosage on the bottle PLUS nutes?