Decision Time.. Cut/No Cut

I'm stressing with anticiption. Should I harvest or wait?

I'm at day 42 (week 6) with scrog grow, bag seed and t44 (for noobie to grow sucessfully w short harvest time).

They are cloned girls, 2 plants but there used to be 3. When I realized that the res might be too small (10 gall res with 6 galls tap)
so I took one out but the roots were tangled and I just cut the plant away and left the rest (not good).

Now I'm getting ph that is dropping every day from 6.1 to 4.9, adding plain tap water does nothing to raise the ph, while ppms are staying at 1000 (-200 tap, 800ppm). I've been using barricade (silicone) to raise the ph sometimes 2 times a day from 4.9ish to 6.1.

I'm getting allot of yellow fan and bud leaves.

Trics are cloudy but not colored. Water temps were high (79-81) until two days ago when I installed AC unit now constant 73-75. I'm thinking pithium.

I need some advice. Should I cut now or continue with the barricade treatment and wait for the trics to color up?

Wow alot of bad things goin there.Your res water needs to be at around 65 F so it hits roots at about 70.Warmer you get algae, infection, sick plants and poor nute uptake.Your ppm is way low for flower should be closer to around 1200-1500. Your water ph should be at 5.8 to 6 max.10 gallon res is pretty small a 20 is about smallest to go as the water transfer is to fast in such small tubs for plants and levels will fluxuat by the hour and root room is cramped.Lower leaves will yellow and fall and if close to harvest uppers will change some color during flower.If your growing sativas your gonna go about 9-12 weeks at 12/12 an indica 5-8 weeks.Which do you have growing?

FilthyFletch said:

Wow alot of bad things goin there.Your res water needs to be at around 65 F so it hits roots at about 70.Warmer you get algae, infection, sick plants and poor nute uptake.Your ppm is way low for flower should be closer to around 1200-1500. Your water ph should be at 5.8 to 6 max.10 gallon res is pretty small a 20 is about smallest to go as the water transfer is to fast in such small tubs for plants and levels will fluxuat by the hour and root room is cramped.Lower leaves will yellow and fall and if close to harvest uppers will change some color during flower.If your growing sativas your gonna go about 9-12 weeks at 12/12 an indica 5-8 weeks.Which do you have growing?

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Thanks for the responce FF. Root zone temps are now at 73, next go I'll have it in the high sixtys. I know 80 is trouble. No algae or smells but what looks like N deficiency.

I'm growing Indicas (clones) and had no problems with a 18 gallon tote with 11 gallons of water in my previous grow (same plants from seed). Next grow 14 gallon tote w 9 gallons of water, I'm hoping 9 gallon res will be enough (I know you said 20, but a 14 gallon tote is already to go (w 9 gallons water).

1500-2000!? Many suggested that 1/2 recommended dose is enough. I'm using AN at 1000ppm, light feeding calculator for 5 gallons (I'm using 6) and the ppms are stable after topping off: OldPhart, "EC stable, ph up - eqalibrium". Isn't stable ppms what I'm lookin for? or only if the ph rises?

The dropping ph is what I'm concerned about. I've been using barrricade to raise the ph for 2 weeks now. Will they continue to ripen with the ph going in the wrong direction?

I talk allot when I'm stressing.

I use mainly Fox Farm nutes at full strength as my aero plant luv lots of food since its so oxysen rich they can absorb it. I also add h202 commercial hydrogen peroxide for even more and it kills any bacteria or algae.The ph is an issue to watch to high or too low it locks out the nutes from being uptaken by the roots which might be the yellowing your getting as they might be locked and not feeding correctly.You can use full feed schedule but I just noticed It didnt say aero tub or bubbler. https://www.rollitup.org/grow-room-design-setup/24900-getting-busted.html is the little setup I showed how to build and I run it fiull strength and then some.In no soil grow ph and ppm are you most important factor and both have to be monitored daily.