Calcium deficiency?

4

420Mn

Well-Known Member
Hey all! Just started this girl on nutes a few days ago using RO water and thinking I didn't add enough Calmag (requirement with ro water). I only used 1/4 the recommended dose. Is this a calcium deficiency? If so, should I increase to 1/2 the recommended dose of calmag, or shoot for closer to full recommendation? If not a calcium deficiency, what is it?
Edit: this is a recirculating dwc system using hydroton and rw with reverse osmosis water, gh nutes, and gh calmag.
 

Attachments

Last edited:
R

RottyRzr

Well-Known Member
420Mn said:
Hey all! Just started this girl on nutes a few days ago using RO water and thinking I didn't add enough Calmag (requirement with ro water). I only used 1/4 the recommended dose. Is this a calcium deficiency? If so, should I increase to 1/2 the recommended dose of calmag, or shoot for closer to full recommendation? If not a calcium deficiency, what is it?
Click to expand...
Not seeing a pic.
 
P

Phytoplankton

Well-Known Member
What's the problem? It's not Ca. The leaves look pretty good, just keep adding the calmag, and nutes at recommended dosage, it'll be fine.
 
4

420Mn

Well-Known Member
Phytoplankton said:
What's the problem? It's not Ca. The leaves look pretty good, just keep adding the calmag, and nutes at recommended dosage, it'll be fine.
Click to expand...
The brown spots on the lowest leaf. I'm only at 25% the recommended dose of calmag as another member here advised I start the girls on less than the recommended dose.
 
B

BeauVida

Member
Calcium deficiency shows in new growth. Don't know why pot growers wait until brown spots show up. Multiple issues by then,they start looking the same. Much easier ways to get through life.
 
4

420Mn

Well-Known Member
BeauVida said:
Calcium deficiency shows in new growth. Don't know why pot growers wait until brown spots show up. Multiple issues by then,they start looking the same. Much easier ways to get through life.
Click to expand...
I took a "bathroom break" at work to look up calcium deficiency again quick and yep, you are 100% correct. Thanks man!!
 
4

420Mn

Well-Known Member
OK, it's not a calcium deficiency. Can anyone tell me what the brown spots indicate? They are on the first set of true leaves. The plant is starting to show her 4th set of true leaves.
 
You must log in or register to reply here.
Top