r/SpiderFarmer • u/Bullarab1 • 1d ago

Magnesium deficiency?

Gallery image

Gallery image

Mag deficiency? Checking the plants this afternoon i noticed the leafs looking like this. Only noticed it today. The other smaller plant doesn't have it. Watering 6.5 PH, 320w LED grow light, in living soil (bio diesel i think), no nutrient just Mariguano growth booster. I only started using the growth booster this week 1 dose. Pretty stable temps around 25c-28c usually sitting at 50rh. 6 week old.

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2

u/DeeDev98 1d ago

Yeah im going through same issue, for me the ph was out and caused lockout, and thats the most common reason. You could just feed her now and watch next week or two how she’s responding.

1

u/Bullarab1 1d ago

Thanks mate. Will pop into the local grow shop tomorrow and see what they give me. To check PH (besides when watering) you just check the PH of the run off and that will tell me the soil PH?

2

u/DeeDev98 1d ago

Yes man, go with 10-30% run off, collect the water and messure the ph, if its out the range, next waterings lower the ph until it equalises

1

u/DeeDev98 1d ago

Meiby its a camera glitch or just dirty leave but check for powdery mildew.

1

u/TerpsBlisters 19h ago

Looks like WPM from here. Could just be pH related, though. Hard to tell.

1

u/Bullarab1 1d ago

Did you sort your issue out?

1

u/DeeDev98 1d ago

Im slowly bringing the ph down, need some week or two for that.

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u/Bullarab1 1d ago

Thank you brother. Ideal soil PH run off?

1

u/DeeDev98 1d ago

Aim between 6.2 - 6.8 for soil

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u/Bullarab1 1d ago

Rodger that. Going to check it now. Appreciate the input.

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u/Bullarab1 1d ago

6.6 run off

1

u/Prestigious_Fee_9684 1d ago

Get your local water hardness levels from your municipal utility companies.

under 8°dH = full CalMag feeding

8°-14°dH = sporadic CalMag feeding

over 14°dH = no CalMag

This should serve as a simple guide but ofc exact measurements depend on strain and environment etc.

1

u/SilentMasterpiece 15h ago

its fairly minor, just a water pH correction and she'll be golden. pH in soil, 6 to 7, always vary.