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If you’re growing in coco it’s calmag deficiency. Also make sure your calmag isn’t locked out by catching your runoff and measuring it.

Using coco perlite mix. RO water with calmag added. Ph 5.8, 1600 EC GH flora series. Added kool, floralucious plus, rapid start. Temps 77 light, 71 dark. Rh 50 - 58. This is my first grow. I’ve been hitting this with 5 ml of calmag per gallon and can’t stop this. Is this a calcium deficiency?

I’m put 5ml per gallon.

Using coco perlite mix. RO water with calmag added. Ph 5.8, 1600 EC GH flora series. Added kool, floralucious plus, rapid start. Temps 77 light, 71 dark. Rh 50 - 58.

This is my first grow. I’ve been hitting this with ml of calmag per gallon and can’t stop this. Is this a calcium deficiency?

I’m not sure. It’s just starting whatever it is. Could be the beginning of a calcium deficiency.

Water run off ec and ph when watering. That’s the best way to find out what going on in your medium.

I don’t think so. You could get one hell of a sea of green with it. You could get the sf 2000 but you’ll probably want the sf 4000 after a while.

Looks like a calcium deficiency.

LST?

Looks like a deficiency or lock out. What’s your runoff?

Thrips?

I like the spider farmer sf4000. It’s a solid light.

My temps are 77 light 73 -71 dark. Running 18/6 schedule.

Sorry about the late reply. I was in my dark cycle. Another detail is I’m using RO water because my tap is over 500 micro.

I’m using GH flora series with botanical CalMag plus as well as other GH nutes. I’ve been in flower for about 4 weeks on NL autos. I appear to have a calcium deficiency. I’ve been adding calmag at 4ml per gallon and ph at 5.8 in coco. My runoff is around 6.0. I’m also not seeing many trichomes...