Enter the Wu

[wutang]

I'd run pk till you feel it's time to flush if you are going to flush that is, or until chop.

Some folks run pk all through flower, some in the final weeks... It's whatever suits, but when running pk there's no way I'd be able to be at at 4ml/L of A+B, they'd just burn to a crisp.

Did the plants yellow up from the top down or the bottom up out of interest? I've had plants that have been yellow from week 3 and have got to the finish line ok, just a bit yellow.

In my mind (as simple as it is) if they yellow from the top down, that's lockout, bottom up and that's not enough grub as they start eating the lowers 1st to push into the new growth up top, which will also yellow up if I don't up the ferts.

Hi bro

Yes the next feed I'll be lowering as there is likely to be a little still in the res at 1.9ec.

Love your approach though bro to growing in general :)

So when I first noticed I noticed it at the top where they went pale but had some kind of weird purple red forming in the leaves. But like a fool, as my tent is maxed out I.e. too many plants, when I opened the tent side door, I noticed the yellowing at the bottom of pot..where it looked like phosphorus deficiency. So with this particular plant it maybe have been a bit of both.

These plants seem quite Hardy. My feed as been high and not burnt any yet so they must have got used to it. I'll just try read the plant best I can. Today I should see the impact...either I've burnt them or they'll be stable..as its two days since I topped up with more feed.

This is the weird colour. Sorry about the lighting as I didn't turn light off


Bottom of the plant:

[Marcus]

Have you heard of Mulders chart?



So if that was a phosphorous def it could be caused by the high feed having too much Calcium pushing the P away, or Magnesium making the plant want more P than it has available in the base feed.

That plant looks locked out to me though, and the beauty of coco is you can flush the medium and reset everything to a baseline and go from there.

Good luck dude anyway, you've got some dope on them plants so you should be cool come chop time.

[wutang]

Have you heard of Mulders chart?



So if that was a phosphorous def it could be caused by the high feed having too much Calcium pushing the P away, or Magnesium making the plant want more P than it has available in the base feed.

That plant looks locked out to me though, and the beauty of coco is you can flush the medium and reset everything to a baseline and go from there.

Good luck dude anyway, you've got some dope on them plants so you should be cool come chop time.

Nah never seen that before bro. Thank you..need to educate myself :)

Thanks bro! I'll try and flush them. Do I flush just with plain water then, and then when do I put back on the system again? Straight after the flush?

[Marcus]

What I'd do is this...

Stick a cake cooling rack or an oven rack on a bucket and sling a jug of water through it 1st to catch a tiny bit of runoff to check the EC... Just to have a look at how high it is.

Then I'd check the EC of the tap water and just run it through the pots until the same EC comes out of the bottom of the pots. Normally about 2 to 3 times the pot/substrate volume.

Give them a half dose feed of 1ml/L A+B ph'd to 6 and then leave them be for a day before you can resume feeding at 2ml/L in the system and see how they go.

You can always sling a bit of pk in too, but not too much.

It should get them feeding again for their last couple of weeks of life.

[wutang]

What I'd do is this...

Stick a cake cooling rack or an oven rack on a bucket and sling a jug of water through it 1st to catch a tiny bit of runoff to check the EC... Just to have a look at how high it is.

Then I'd check the EC of the tap water and just run it through the pots until the same EC comes out of the bottom of the pots. Normally about 2 to 3 times the pot/substrate volume.

Give them a half dose feed of 1ml/L A+B ph'd to 6 and then leave them be for a day before you can resume feeding at 2ml/L in the system and see how they go.

You can always sling a bit of pk in too, but not too much.

It should get them feeding again for their last couple of weeks of life.

Thanks bro.
Does the tap water need to be ph'd?

[Marcus]

What I'd do is this...

Stick a cake cooling rack or an oven rack on a bucket and sling a jug of water through it 1st to catch a tiny bit of runoff to check the EC... Just to have a look at how high it is.

Then I'd check the EC of the tap water and just run it through the pots until the same EC comes out of the bottom of the pots. Normally about 2 to 3 times the pot/substrate volume.

Give them a half dose feed of 1ml/L A+B ph'd to 6 and then leave them be for a day before you can resume feeding at 2ml/L in the system and see how they go.

You can always sling a bit of pk in too, but not too much.

It should get them feeding again for their last couple of weeks of life.

Thanks bro.
Does the tap water need to be ph'd?

No worries dude.

No, you're only using it to flush any crap out of the medium. Then the half dose feed is to reset that ph and give them a little bit of grub to start munching on again.

Good luck.

[wutang]

What I'd do is this...

Stick a cake cooling rack or an oven rack on a bucket and sling a jug of water through it 1st to catch a tiny bit of runoff to check the EC... Just to have a look at how high it is.

Then I'd check the EC of the tap water and just run it through the pots until the same EC comes out of the bottom of the pots. Normally about 2 to 3 times the pot/substrate volume.

Give them a half dose feed of 1ml/L A+B ph'd to 6 and then leave them be for a day before you can resume feeding at 2ml/L in the system and see how they go.

You can always sling a bit of pk in too, but not too much.

It should get them feeding again for their last couple of weeks of life.

Thanks bro.
Does the tap water need to be ph'd?

No worries dude.

No, you're only using it to flush any crap out of the medium. Then the half dose feed is to reset that ph and give them a little bit of grub to start munching on again.

Good luck.

Perfect. Cheers mate appreciate it.

I went into the groom and res pH is 6.1 and ec2.1 I think it takes a couple of days to rise then it stops (ph).

Imma try flush it..but I think I'll struggle due to space, noise etc..so I might just ride it out.

Thanks again Marcus.

[wutang]

Day 79

[wutang]

@Marcus quick one sorry, I also have a heater in my res most time the temps are 22c. Sometimes it does hit 25c max. Could this be an issue? It started getting cooler in the garage so I put a heater in..its set at 20c and it has a built in thermostat but it feels its off a couple of degrees and sometimes a bit more.

When the water meets the trays the groom temps are between 18c and 22c so it should cool down by the time the plants feed again. Any thoughts bro?

[Marcus]

I reckon them plants will be fine, they look green still. A little flush will help though.

I know nothing about heating the res, seems like a waste of electrickery to me though. Mine just get a jug from room temp buckets, or straight from the cold tap if I'm making it up in the day, seems to make no difference to the plants.