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Day 7 update -
After checking the run off I've realised that I may have pre-soaked the coco the with a pH too high, I think I should of let the solution sit for a bit and then retested the pH before washing. I realised the pH was fluctuating after filling up my 30 L bucket with water for a feed the other day.
To me the plants look quite pale when under the led light, although when I take them out of the tent and check them under a normal lamp light they seem hunky dory all be it maybe a little pale, they all seem to be growing nicely enough, with one lagging behind a few days (skunk). The run off tested to 6.4 which is savagely high I'm sure. I've since ran about 3 litres of 5.8pH'd water through each plant in an aid to destabilise the levels.
I have some good news in that I have a mars hydro 900 up and running (she's quite the heffa) also my friend that is chipping in has a RO machine and will be supplying me with fresh wasser! Hopefully a good flush with the RO water will help me get back to a better pH. i'll post two pics one in the tent, one out. Kinda hard to distinguish with this shitty cam.
Hi mate
Led always makes them look washed out.
Ro water is prone to ph drifting I read somewhere and you will Defo need calmag.
I try not to get hung up on an exact ph, I'll aim at 5.8 but as long as it's between 5.3 and 6.3 I'm happy.
A little bit of drift is quite a good thing, some nutes are more available at a certain ph than others, so a bit of drift means a broader uptake.
In my system I've found the ph drifts up in veg and down in flower, I'm sure there's a scientific explanation.
Is that the mars 2 you gone for? Did you go via the rep on here?
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