Indoor LED, Aeroponic and Cropking Purple Kush THC blowout

[gardenhackle]

DAY 6 from seed

Strain: Cropking Purple Kush. Cropking claims 27 percent THC. I grew some in a mixed grow that was very potent even though the grow was totally botched. After more research and a few more grows under me belt, time to run them again. These are fertilizer-sensitive and last time I had severe nitrogen toxicity problems, root rot and cal-mag issues. I want to see what these babies will do with a good grow and hoping I'll give 'em what they need this time. Last time I grew them with two other strains from the same reservoir. Won't do that again. All purple Kush this time.

Grow Media. GH AEROFLO-18

Lights: Two Solar Storm 440.

October 3, I dropped 8 seeds in shot glasses filled with RO water.

Today, 6 days later, I've set them in their rooting slots with one light going on them in veg mode. Light is appx 4 feet over top.

Temp 72 degrees

Added:

13 gallons RO water reservoir ppm: 16

Nutes:

25 ml hydroguard per gallon
50 ml cal-mag

 

[gost25]

Allright mate find u keep eye one rez temps this time and try 1 min on and 3mins off sow the roots gets some air between feeding

 

[gardenhackle]

I have to find a really reliable digital timer so I can try this. . I've got one on the way to try.

Reservoir temps are going to be a problem again. Air stones didn't do much, if anything for that. Might do he frozen bottle shuffle this time around. I don't have the budget for a chiller.

Roots were quite good last time and snowy white tongue end even with reservoir temperatures staying in the high 70's. I'll be happy if I do as well with this grow. My last had me pretty happy with final stats:

9 autoflowers
880 watts
70 days from seed
14.5 ounces of buds.

I'd like to see 16 ounces from these 8 plants in 80 days.

Ten more days but an extra ounce and a half and..... If I can really make them happy, these are quite potent. Even as lousy as I grew them out last time, they ended up being the most potent, best effects and longest of anything I've grown, maybe on par with the killer Kush (super frosty pheno of candy Kush I lucked into).

 

[woody]

Sounds great @gardenhackle im along for the ride. Best of luck bro

 

[gost25]

As they say you mit have to bit the bullet and get one

 

[gardenhackle]

As they say you mit have to bit the bullet and get one

Agreed. Kinda. . I've been digging into the water temperature issue a bit and I'm thinking more research is in order before buying and plugging in a 400 dollar cooling unit. Granted, I've already got a few grand in it and it's not worth trashing a full crop because I won't spring for it.

But here's what has been going on in my head. Maybe I need to organize the thoughts so here goes.

Root zone growth turns out to be highest at 75 degrees based on what I've read. Recommendations for aero root zones, however, are often 68 degrees because it is bad for pythium, good for oxygen and fair for root growth.

My strategy last time worked surprisingly well for me, haphazardly as I went about it and I wasn't sure why but now maybe I'm thinking it wasn't a bad strategy at all.

I addressed pythium and water borne pathogens with cleanliness and Hydroguard. I dealt with oxygen levels by keeping zero level in the waterflow tubes and adding bubblers to the reservoir. One mistake I made was that I had the pump water intake facing the root intake and roots got trimmed at the pump. I didn't have that problem before because roots wouldn't grow in the tank before. (Much better root health).

Do I turned the pump to make intake farthest from root zone.

The root zone temperatures often were 80 to 85 according to the water thermometer. About 4 degrees above air temperature. It changes slower than air but 4 degrees above ambient air temps was average.

And the plants still thrived. Seems the air temperatures were very good averaging 78 degrees and no major fluctuations. Water temps, then, probably averaged 82 (8 degrees above optimal root growth temperature).

And recommended reservoir temperatures are 8 degrees BELOW that optimum root growth temp.

So I think that's why the lat grow was surprisingly effective with high reservoir temps. The roots got all the oxygen they needed and pythium wasn't a problem.

I may change grow media and go to Henry buckets or coco after this grow, too. But I'm going to avoid buying the cooler this cycle if I can help it. Also am running out of available amps. 880w if lighting, fans, ware pump, aid pump, oil heater and/or the air conditioning unit.

If I can exceed 45 grams per plant of high quality bud in 85 days, I'll be quite satisfied and the 5 midgets gave me 50 grams each in just 68 days. So I'm not convinced that a reservoir chiller is a necessity. Especially since I might go with buckets of one type or another in my next grow.

 

[gost25]

Or it can be u r growing to many at onus so it mite meen less is more

 

[gardenhackle]

Yeah, I've contemplated that I might be working too many plants at once. I think maybe it's more that I'm too reluctant to prune. I've seen grows with twice the plant density in a SOG.

Laws may change soon in my state. That's the main reason I'm not making any expensive changes to my setup.

I'm kinda tempted to clone enough to to start this with all 18 slots filled for a single-cola SOG grow. .

But I'll probably just let them go 3 weeks and flower them.

The biggest decisions may be on the next grow.

These plants are going to get spread out a lot more once the roots get going well. I have got them all seated together so that I am only burning one of the lights. Once the roots get long enough to tangle together, I'll move them to final slots and fire up both lights.

 

[Heavily Medicated]

Are these auto or photos"? 27 percent thc, wow.

 

[gardenhackle]

These are photos. I can tell you that I grew them very badly and harvested early last time and it was still the strongest stuff I've grown. A super-frosty auto candy Kush (the only one like it so far) is killer, too, but I really want to see this purple Kush approaching potential.