Stop me before I kill again!

Added an oscilating fan to my grow box last week to strengthen my stems, but it really dried out my rockwool and ended up shrivelling and killing 3 of my 8 NL's in about 3 days. Prior to that I was concerned about root rot.

Anyway, have 5 plants left, 1 of which is exhibiting yellowing along the center mass of the leaves, the other is showing spotty yellowness.

Pics included....

Right now I am running a mixture of 3 gallons of water with 7ml of Adv Nut "Grow A" and 7ml of Adv Nut "Grow B" with a Ph of around 6.0.

Is this nute burn? A deficinecy of iron or manganese?

Please help, I don't want to murder any more of my babies.

DrG

You need to back off the nutes a little.. a couple days and she should be growing some new veg.. think about transplanting also?..

If you have the fan going.. run it indirectly and keep those rockwool cubes moist.. not wet... and get into some SOIL!!.. if you are running hydro.. try some DWC?

All in all they are not doing that bad... just need to keep em moist and scale your nute down.. should be alright.... I've seen and done worse..

Okay, thanks for the tip...most appreciated.