My plants are really messed up :( Please help!

Thanks for clicking into this thread, perhaps you can help me.
This is my second grow, so I got over confident. Thinking I could sort out any problems on my own without running to RIU every time I had the slightest deficiency, so I didn't. And now my deficiencies and lockouts have spiralled out of control.

RIU please help me.

Setup:
600w HPS
125 RVK Fan // passive intake
Bio Bizz All mix soil
Bio Bizz nutes (1ml/L Gr / 3ml/L Bl)
Molasses
pH of solution is 6.6 without adjusters (so don't use)
Temps 80F during light, 65F Dark
Humidity fluctuates around 30-50%

Plant 1:
Bagseed Indica, week 5 flowering
Fan leaves are falling off everyday, turning light green and contorting, then brown and crispy, flushed 2 weeks ago to try to correct problem, some improvement but still seemingly dying. Was in veg for 3 months.



Plant 2:
Clone of previous plant, also week 5 of flowering. Only has 3 blades on fan leaves, fan leaves are yellowing


Plant 3:
Another bagseed Indica, week 5 of flowering some yellowing but the main problem is the sudden abundance of PURPLE discolouration appearing on fan leaves, never seen this before so not sure what's causing it Also, was in veg for 3 months.


Plant 4:
This is a sativa bagseed pulled from that commerical mexican brickweed. Vegged for 3 months. Week 5 into flowering. It's 6ft tall! It's really messed up, looks like a pH issue but the run off is within range, soil pH is 6.8. I've flushed it twice, over 3 weeks but it hasn't changed.


Plant 5
This is Chocolope grown from seed, 4 weeks veg, 4 weeks into flower. The leaves are beginning to turn brown and crispy and light green between the leaf veins.


Is there any saving these plants? Should I just ride it out to completion as I'm halfway through flowering. I throw myself at your mercy!

flush. start feeding again at lower amounts.

No. don't harvest them now, unless the problem moves to the buds. Its a multi deficiency brought on by being root bound. So since its pretty close to being finished it would be impractical to try and re-pot now. I would let it go as long as possible if not till its completely mature. My experience with root bound plants in flower is that they usually end up fine.

asaph said:

flush. start feeding again at lower amounts.

Click to expand...

Thanks asaph, flush all of them? Then feed ar say... half strength? Admitedly when I flushed some of them before, I fed them at the full strength (relative to that week, which would have been 1ml/L grow and 1ml/L bloom.)

well your quantities don't sound so much. and I think the poster above was right - your problems are likely due to the size of the pot more than anything. So I don't expect flushing and refeeding to do wonders here. But you have some lessons for next time. Pot size, and not growing plants so tall... It's quite useless indoors.

Also, if your humidity is low, you can try foliar feeding while being careful not to get too much on the buds. only if you feel safe from mold issues.

echlectica said:

No. don't harvest them now, unless the problem moves to the buds. Its a multi deficiency brought on by being root bound. So since its pretty close to being finished it would be impractical to try and re-pot now. I would let it go as long as possible if not till its completely mature. My experience with root bound plants in flower is that they usually end up fine.

Click to expand...

My first thought were the same as quoted above.....what size pots are you in......??

10 Ltr pots, I don't usually veg for so long, but I was growing some autos at the same time on 18/6 so the photoperiod plants were in veg for around 90 days as I only have the one tent. Yeild was crap on the Autos, so I won't be doing this again.

I agree, I reckon the plants are root bound. Not much I can do about it, might as well ride out this grow and lessons learned for next time