Spots on leaves Kush Bomb

[superhydro]

Hi,

I'm using Ionic Hydro Grow with EC of 1.2. 4 Weeks in from seed using an oxypot, I have spots on some leaves which first stared 2 days ago and its getting worse. I think it could be some deficiency, PH is 5.6. Do I need to up my feeding, maybe get EC to 1.3?

Thanks!

This was a pic from 2 days ago.

 

[superhydro]

Guys I could really do with some help it seems to be getting worse. I don't want to increase nutrients if thats not the issue. Below is pic of roots which seem fine.

 

[BuddroGreen]

Looks like cal/mag deficiency.

Do you use RO water?

Do you supplement cal/mag?

What is your light set-up, HID or LED?

Distance from canopy?

Kush loves the cal/mag...the plant looks really healthy besides that issue.

 

[superhydro]

I use standard tap water.
No supplement only on Ionic Hydro Grow at the moment
CFL 300W dual spectrum 18/6
Light is about 10 inches above canopy (Although top leaves don't seem to be getting this issue.)

Root and plant growth is rapid at present and each day I can see big growth changes. So I need to supplement rather than increase my current nutrient?

 

[Rifleman]

Raise your pH to 5.8. Mg is locked out at lower levels.

 

[superhydro]

Raise your pH to 5.8. Mg is locked out at lower levels.

Wow thanks for this chart! Looks simple to follow I will treasure..lol!

 

[Rifleman]

Wow thanks for this chart! Looks simple to follow I will treasure..lol!

Note that 5.8 is optimum, however you'll need to let it drift naturally up and down to insure complete nutrient uptake. It's a fine line to walk that only experience will help.

 

[superhydro]

Some updated pics below, is my plant too bushy worried about light getting through? My leaves also seem megga wide when comparing to others on here.

 

[Weactiond]

I guess your leaves seem wide because of strain genetics. In general it looks fine.

 

[Iveresel]

I hope the advices which was gave before help you and plant will feel better.

 

[superhydro]

I've put another pic, do I need to prune? This bush seems to be getting out of control fan leaves are huge and seem to be taking up lots of the lights, although all other leaves below are fully green.