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Ok so I just got my PH pen tested and it was way out. It was showing a ph of 7.3 when in fact it was 5.8 so I have been dropping it 1.5 everyday bringing it to a ph of 4.3, that sucks big time. If anyone knows the deficiency please let me know. I was thinking calcium. I will do a flush and start...

I've got a 1000 watt over 4 of them with a cool tube and that's about 1ft above them and a 600 watt above 2 of them without a cool tube and thats about 1 1/2ft above them. Ive got a 100ltr reservoir feeding them all.

Yeah man recycled coco. I've done recycled coco before with no problems.

Hi Roll it up crew, I've got a bit of a problem. My leaves at the top of the plant are yellowing in the veins and eventually turning brown and dying. I tried fixing it by upping the base nutrients and adding cal-max and that hasn't seemed to of fixed it. I'm growing in rec coco and currently in...

I was wondering why they went to flower, cheers. They are absolutely kicking arse now though. Pictures a bit shit.

More pics of were it's up to now. Also a pic of a little preymantis guarding the plants.

Started these with the intention of putting them inside. Decided I couldn't be bothered with it so I stuck them outside (probably a bit too early in the season) and thought if they survive they survive. One died from being snapped at the base another went a bit yellow but it pushed through with...

I got a new ph meter today and tested my nutes solution, it was at 7.2, obviously way to high. I dropped it to 5.8. I will also up the ppm. Will post updates with pics.

I have a bluelab truncheon and it doesn't read anything on that. So it would really low I would assume.

I use rain water from my tank

Yes it is ph perfect and no I dont manually ph it because of this reason and because my pen is playing up. When I get a new ph pen tonight I'll test run off and post what it is. I have a Rec top feed set up.

RH 60% Temp 27c Feed 1 hour after lights on and 2 hour before lights out. I don't let it completely dry out as I've read it's not good for coco but it isn't soaking. I didn't rinse or buffer my coco, supposable it had already been done (Nutriefield premium coco). I do ph my nutes but my meter...

Hey Everyone, please help young plants are dying. It started out as dark spots then started drying up and going crispy. They're in air pots with coco & perlite. I'm using advanced nutrients sensi coco grow (half strength) and superthrive. Coco is always moist but never saturated. I have attached...