plants need help

hi all i am new to growing this is my 2nd grow first grow i got 17 ounces of dry weed wasn't the best tho it was airy temp did get real high tho like 99f. My set up is a 1.2 x 1.2 x 2.0 grown tent in my garden shed with a 6" extraction fan with carbon filter 4" inlet a 8" fan blowing the heat of the plants 600w hps light and i grow in canna Coco Coir Pro+ 10 liter pots

Im growing 4 silver haze got them from cuttings started them on 1-11-14 and was told ready for 1/4 Strengh feed with coco a+b 10ml in 10 liters of water i feed every other day and just increased the feed to 15ml to 10 liters of water and seem to be getting some problems just need to know for sure if it's nute burn before i flush them don't seem to be burning just rolling over and folding in half thanks for the help in advance temps with light on 74 - 81 humidity 55 - 65% lights out tems drops to 68 the lowest it has been and humidity drops to 46% i have all ready posted this but in the wrong place and not sure how to remove it

Whats your water ph? nute ppm?

my water ph is 5.7 i dont have a tds meter yet but i ordered one last night but will take about a week to get it

i use tap water witch the ph is around 8.4 so i use ph down to get it between 5.5 and 6

Pompeygrow said:

my water ph is 5.7 i dont have a tds meter yet but i ordered one last night but will take about a week to get it

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just thought id CHIME in, id be aiming to raise the ph to 6.5, (7) lol, sorry couldn't resist, I think im in the same area as you and my ph is 7-7.2 straight out the tap, how are you measuring at the moment? also though I don't use the nutes you've got, is every 2 days a bit much for them? and see if you can get a picture in normal light sometimes that's easier to see stuff,

sorry mate just noticed your in coco ill shut up then!!

haha no prob m8 been told i got nothing to worry about im just panic over nothing i got a ph meter just not one that i can use with ppm

put between 5ml of A/B into 10L of water, go for half to full strength nutes, 15ml seems a lot, get some calmag, and nitrogen (biobizz) on my 2nd run of silver haze she seems to need quiet a bit of N

ok thanks for in put dude but on the bottle it says 40ml per 10l of water is full strenght so im only useing just over 1/4 strenght someone also pointed out that im over watering 2.5l per 5l pot