mg or iron def?

[Herblover]

I've had this problem for quite a while. Is this a mg or iron deficiency? My PH is 6.5 and I just recently began giving the babies a diluted taste of Fox Farms 6-4-4 Grow Big. I've got a really strong meristem of grow on the plants. I'm interested in your thoughts. Thanks - Herblover

 

[bombbudpuffa]

Doesn't look like an iron def. Resembles a magnesium def more. Hard one here. Whats the room temp and humidity?

 

[Herblover]

92 degrees 75% humidity

 

[shuggy4105]

too hot man,try and get the temps between 60-85f,although heat stress would be the second thing i would check on.
an iron def is extremely rare, id go with what BBP said first-probably a mg def as the outer edges are yellowing, but the veins remain green.

 

[Herblover]

I've got the temp down to 80 and 85 now and have started spraying daily with epsom salt to see if I can improve the mg situation. Hopefully, I can turn things around.

 

[sweetnug]

Dude co2 man, you'll be cool with co2

 

[HGB]

and have started spraying daily with epsom salt to see if I can improve the mg situation. Hopefully, I can turn things around.

Don't overdo Mg or you'll lock up other nutrients.

.02

 

[shuggy4105]

"REGULAR GARDEN LIME", this will raise the ph of an acidic based soil mix and also acts as a soil comditioner. 1 Tbl-sp pert gallon of soil.
this will also take care of the "mg" defficiency.
good luck dude