Red Stems - Strain trait or K deficiency?

hecuter

Active Member
I've had this plant since it started off as a stunted little throw-away plant 3 weeks ago, and it's made an amazing recovery. I thought it was doing well, but I posted pics on another forum and members there were telling me it's got some problems. They suggested a K deficiency, but I was wondering if it was just a trait of the specific strain I have.

Technical notes: The environment is staying at a temp range of 68 - 80F with a relative humidity of 34% - 60% (60 during morning watering 34 at night). Lights is a 40W CFL 1" away from the tip of the leaves on 18/6 (On from 5am till 11pm). 2 80mm fans run during the photoperiod. I give it 150ml H20 every morning and leave a container of water in the corner to boost humidity and lower temp, misting after feeding to strengthen the stalk and keep the humidity high throughout the day. I visit often and talk to the plant (busting out rap beats about how big it's growing :P) to keep the CO2 up. Haven't fertilized it since after the transplant, and I noticed since then the leaves aren't spotted and the plant is doing way better. I inspect it for bugs and take them off by hand. All in all I spend lots of time checking it but more time letting it do it's own thing and it's paying off.

The fertilizer I've been using is called RapidGro 20:20:20 blend, 1 tsp mixed with 4L of water. I used 60ml of it for 3 days right after transplant because the leaves were becoming spotty. Haven't used it since then.

56K warning!!!
Before:
548nbep.jpg


After:
676dlhz.jpg


Problem Areas:
4uwc0zp.jpg


5yakkm1.jpg


Side note - is this nute burn/lockup, light burn, or nute deficiency?

5y80805.jpg




On another note entirely, now that it's preflowering, should I change the light schedule or anything else?
 
Ha weed ;)

I added 60ml of fertilized H20 (RapidGro 20:20:20) 2 days ago and theres no new red petioles or streaks on the stem. I checked an old pic of the site I found the plant, and from the looks of the discarded leaves they all had red stems too. So looks like it's a natural trait of this strain, but the nutes can't hurt too much anyways.
 
man that before put looks like doo doo

props for getting it to look like the after pic which looks nice!
 
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