Where did you buy your seeds if you don't mind me asking ?Hihi...
A little off topic, but i ordered some coco blocks and (...as usuall when i only wanna buy soil or nutes )
Decided to take some reg. Lowryders for some experiments
I ordered 15 seeds
View attachment 216141
and got THIS
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@Truu @Rebel @RebelRoy @blue @C.E2 @Son of Hobbes
I have some pH problems with my coco...
See here the current seedling at 4 days
https://www.autoflower.org/threads/tiny-4-day-old.57344/
Here is the pH probe readings in the same pot,
http://i.imgur.com/BrdQH44.jpg
after seeing this i checked the runoff and it came out at about 7.2 when flushing with 5.8.
is it possible to fix this? I think this seedling is beyond saving so for the next one going in.
Hey mate, they're not gone but need urgent action. I've had much worse and ended up monsters! I was a noob and made a few noob mistakes.
I would need to know as much as possible. Right now, I would suggest blasting as much heat as possible and lower RH to force the younglings to transpire. I believe we're looking at complete nute lockout, and they're starving. Yellowing of the cotyledons and first leafs from the outer to the veins seems to suggest that. It is literally is feeding of it's own little reserves.
Forget that pH meter, it's shit and completely untrustworthy. Kind ok'ish for moist levels, but even still…
Please let me know
- Coco, what brand, how you prepared it, exactly what you did before putting the seedling in there. Did you wash the coco? Is it actual horticultural coco or just some brick? Please tell me it's not reptile-grade coco (no trychoderma) - all info as possible
- Water. Tell me all about your water. Where does it come from?
- Nutes. What are you using and how much?
- Does not look like light stress or heat stress at all, does not look like water-logging, I can even see the outer coco is dry.
Lets take it from here for now. It kind of looks like when I washed my coco when I wasn't supposed to. Good coco should not be flushed. If one is to flush coco, one must do so with a minimum EC of 0.6, and be sure there is enough root mass to keep myco's available.
Hiya @Groff glad you replied!
Heres the coco, http://www.gorilla-grow.com/products/brown-grow-bronze
I did not prepare it much, just flushed it with plain tap water figured it had a good bit Ca in it.
I use my tap water, it comes out at about 120ppm and ~6.8-7 pH.
Canna Coco A+B, AN Voodoo Juice and Pirahna.
She only had Voodoo and Pirahna until I noticed she stunted then I gave minor flush with 1L 5.8 pH water with like a drop or two of Canna Coco A+B.
Thats it.
hmm … weird … I've never seens that brand of coco before, but it's clearly a growing coco medium, not a reptile medium. Reptile coco is sterilised, which is no good for plants, especially because of mycos (trichoderma, etc) … Weird because you added Voodoo and Piranha. Never used them, but they're beneficial bacteria
- How do you actually know your tap water is pH 7 ? With that crappy pH meter … no no no! Usual numbers are above 8. Not saying it isn't 7, but it's not normal for municipal water, at least in europe. pH is quite sensitive, and a logarithmic scale, so 7.1 to 7.3 isn't linear. A "mere" 0.2 difference can be quite substancial. Then you add nutrients,and what's the pH after that? Even still, 7 is way too high.
Coco growing is essentially hydro. Your absolute first tool is a decent pH meter and cleaning/calibration setup. You need the pH to be around 5.6 to 5.8 at this stage. Slowly rising to 6.2 - 6.4 max, late flower.
Literally … run run run to the closest supermarket and look at bottled water. There is bottled water in the 5.3, 5.8 pH range, as well as 6.5 range. Look at the label. It wont be difficult to find good water around the 5.6 mark. This is preferable early on. BUT, when you add nutes, the pH will swing massively! You do the mix and at the end one must pH correct to the ideal mark. So there is no point in buying pH perfect bottled water and add nutes if you cant be absolutely certain the pH is correct in the end.
If the pH isn't correct, all the right nutrients might be there, but will be locked out to the plant.
Don't be overwhelmed.
You need to go out and buy a decent pH meter. A quick emergency fix is to buy low pH bottled water, add low dose nutes (canna half strength), measure pH and correct it to the 5.6 - 5.8 mark if needed. Feed handsomely to flush out the previous waterings as well as raise the ambiente temps to force transpiration, hence forcing the plant to suck up new water with nutes
I have a "real" digital water pH meter to mate, i've grown bubble buckets before just never seen this problem in coco.
I just stuck this soil meter in there to see whats up.
So.. Big flush with half strength nutes at 5.6-5.8?
I can point a heater on the pot to make it transpirate faster?