Update @day 37.
Bit the bullet and bought BlueLab Trucheon & ph.pen - latter of which required 24h soaking, so cant use until next watering, current PH meassure is still w. "drops".
So my tap-water clocks in at a wooping 300ppm
Water reports claims hardness @17dh w. Ca/Mg at 119mg/l & 8.1mg/l
Changes since friday:
Currently the symptoms are starting to be different on the two plants:
Watered last night:
AvT: 75% RO water & 25% tab - 3ml/l grow - 1ml/l PK13/14 - PH 6.3 and 700PPM - came out pretty much the same 6.3/700
OS: 75% RO water & 25% tab - 3ml/l grow - 1ml/l PK13/14 - 250mg/l Epsom - PH 6.4 and 800PPM - came out pretty much the same 6.3/800
Changed the grow ferterlizer from (NPK4-1-7) to (NPK 6-1.3-5) to get better ration of P to K and tried Epsom on OS
(not used Epsom before, so chickend out and only gave to OS in case i screwed up)
My thinking at the moment, is
1. to much Calcium from tap-water is main issue?
2. Underfeed, esp. N & P and Mg?
3. maybe lockouts due to high Calcium? (resolved by RO water?)
Plants overall do not look disastrous (yet?)
AvT in front, OS in back (although slight chance they where "switched at birth
)
AvT - Yellow fades on leaves:
OS - Much spotting/necrosis:
Any suggestions/guidance/comments appreciated.
Otherwise will continue watering at ap. 66% RO to 33% tap - and will add Epsom to both (unless OS gets worse after Epsom)
Bit the bullet and bought BlueLab Trucheon & ph.pen - latter of which required 24h soaking, so cant use until next watering, current PH meassure is still w. "drops".
So my tap-water clocks in at a wooping 300ppm
Water reports claims hardness @17dh w. Ca/Mg at 119mg/l & 8.1mg/l
Changes since friday:
- Lights gradually increased from 160w to 175w
- total of three waterings, all w. 75% RO water & 25% tab water. (prior to friday, all waterings was 100% tap-water)
- First two w. ap. 3ml/l grow (NPK4-1-7) + 1.2ml/l Cann PK13/14 - adjusted to PH 6.3
- Temp now tops at 27c/80f (lights on) and lowest 20.5c/69f (lights off)
Currently the symptoms are starting to be different on the two plants:
- Orange Sherbert: (worst off) has many dark spots, center and edge - hits leaves all over -always drooping for last few hours of light, resolves ap. 1 hourt into next lightcycle (daily occurrence)
- AlienVsTriangle: (better off) mainly yellow fades, bottom and center, not top - very few spots. no significant drooping.
- Both: some/many Purple stems on leaves.
Watered last night:
AvT: 75% RO water & 25% tab - 3ml/l grow - 1ml/l PK13/14 - PH 6.3 and 700PPM - came out pretty much the same 6.3/700
OS: 75% RO water & 25% tab - 3ml/l grow - 1ml/l PK13/14 - 250mg/l Epsom - PH 6.4 and 800PPM - came out pretty much the same 6.3/800
Changed the grow ferterlizer from (NPK4-1-7) to (NPK 6-1.3-5) to get better ration of P to K and tried Epsom on OS
(not used Epsom before, so chickend out and only gave to OS in case i screwed up)
My thinking at the moment, is
1. to much Calcium from tap-water is main issue?
2. Underfeed, esp. N & P and Mg?
3. maybe lockouts due to high Calcium? (resolved by RO water?)
Plants overall do not look disastrous (yet?)
AvT in front, OS in back (although slight chance they where "switched at birth
)AvT - Yellow fades on leaves:
OS - Much spotting/necrosis:
Any suggestions/guidance/comments appreciated.
Otherwise will continue watering at ap. 66% RO to 33% tap - and will add Epsom to both (unless OS gets worse after Epsom)
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