coco problem

[smokeyla1]

1st grow
White Rhino and g13 Haze
30 days 12/12 from clone
Coco sog 4.5" pots
Drain to waste 2 watering per day 5 min each
Calmag everyother rez addback 2.5ml gal
Liquid Karma 15ml per 4 gal
Flora Nova Bloom + 2-3.5ml Liquid Koolbloom to ec 1.4-1.6
Ph 5.7-5.8
600 hps hortilux Eye aircooled supersun 2 with 6"vortex
4.5 x 4.5 box with 8" vortex pulling ac air
Temp is 78-80 6" from glass of hood

I thought might be a burn from drifting up to 1.6 ec sometimes but that lighter shade of green in the leaves is throwing me off unless its a burn from P or K. Also forgot to check my ph/ec pen which was reading a 5.5 as 5.7 and ec was reading .2 higher so 1.3 ec was reading as 1.5. Also do these flowers seem small for 30 days 12/12 lighter green one WR, G13 darker. thanks

 

[bounty29]

The buds look pretty good, you can see the burnt tips though. Maybe try bringing PH up a little bit but I don't think that'd be the problem. I keep my PH between 5.8 and 6.0 when feeding, and I don't know of anyone that goes outside the range of 5.8-6.2 with coco.

The first thing I'd try is bringing the EC down a little bit, try around 1.2 and see how the plant reacts. The damage that has been done to the leaves won't be fixed, but you should just try to notice any small changes in the leaves texture or how the plant is holding itself.

What kind of water are you using to start with?

 

[smokeyla1]

using ro, tried adding a little tap instead of calmag buy found it makes ph unstable and rises everyday so I add about 10ml calmag to 4 gal

 

[DEDHEDFRED]

Sorry I missed this one Smokey.........That first leaf pic almost looks like they`re being overwatered or rather like they`ve got wet feet.....What consistency is your coco.........Is it real fibrous , airy and fluffy or compacted and mushy............I think 5 ml per gal. Calmag is the proper doseage for maintenance with R/O but your problem looks nothing like calmag deficiency with rusty spots and leaves curling up..........Anyways.........You can overwater coco if there`s not enough aeration in the rootzone ........It`s hard ta say whether your buds are under developed without knowing the strains capacity........Hope things work out for yas ...........DHF........... .......

 

[JITAMON]

Aloha I agree with Deadheadfred. My first instinct was too much water.The more I look at that leaf, I see nutrient deficiency's caused by overwatering. Second thing i see is two completely different plants. Your g-13 seems ok. The other one does not. Since your plants have different need's , I suggest that you tailor your fert program to suit each plants individual need's since you only have a couple.
I have grown these strain's outdoors in Hawaii. The rhino doesn't like wet feet. Even to the point of liking drought conditions at times. I grew in 6-9"s a year condition in the desert for years using wick systems. When we grew them out on the wet side they looked like yours.
Other thing I noticed is lack of correct ratio of base nutrient's to additives. What ml/gal are you using of Floranova?
One more thing, I notice that LK really spikes my PPM's and that throws off the base ratio's when using Floranova as a base. Check out this thread.http://www.icmag.com/ic/showthread.php?t=95759 . This will help you dial in FloraNova bloom as your base. Good luck with your coco mama's