brown spots at leafs.

[terror4]

Hello everyone.

Coco +sensi coco grow + B52
clf 5*23w
day 18.

26-29C and hud 50-60%!!

i feed 4ml/l grow and 2ml/l b52 before 2 days and now 3ml/l and 1ml/l!!!!

can anyone help me?

2 leafs 1st set and one second leaf.

thanks

 

[A-Train]

Are you using a cal/mag suppliment with your grow?

 

[terror4]

Just Advanced Nutrients sensi coco grow A&B + B52.

 

[A-Train]

Heres a pic of my last plant after it progressed a little. It started looking a bit like yours and I was advised to start cal/mag with my feedings and it stopped the spread. I used general organics cal/mag plus

 

[Anasazi]

ro or di water? what about ph? you'd think you wouldn't need to add cal or mag with a coco nute but sometimes you might need to.

 

[terror4]

i use carbon filter water ph near to 7!!!but i use ph perfect nutrients.