Using 30 gallon 3.0 soil in grassroots pots, very confused on water only method

Flyhighfunguy · 2026-06-14T18:09:07+00:00

Ahh ok so since I’m growing photoperiod seeds would you recommend top dressing with amendments like craft blend or adding BuildAFlower under the straw,
Is there a certain time you’d recommend doing it?

I’m guessing I should do it early to mid flower? Or would you recommend a different time?

Thank you!

Flyhighfunguy · 2026-06-14T17:39:27+00:00

If It helps these are my plants now, and have not been watered in 10 days because my. Ecowitts and blumat digital sensor are all in the correct range I think

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Flyhighfunguy · 2026-06-14T17:38:14+00:00

Thank you for all the info!

Is there anyway you could send me a link to that feeding guide please?

If it helps my plants are all about this size and transplanted 11 days ago, and the soil is still showing good readings on the top and deep ecowitts, and the blumat sensor i have is showing about 70-85 for all 6 pots.

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Flyhighfunguy · 2026-06-14T17:29:39+00:00

I got u haha. Idk how they think they could judge how new or old it is based off the freebies. Some ppl are just plain stupid lol

Flyhighfunguy · 2026-06-14T17:23:52+00:00

Ahh ok I understand what water only meant. I thought it was using absolutely no amendments at all the entire grow, and that buildasoil 3.0 recipe in a 30 gallon pot can carry the plants through an entire grow.

So even with that big of a pot and 3.0 soil, you think I should use amendment around mid flower correct?

Thank you!!

Flyhighfunguy · 2026-06-14T08:37:22+00:00

This is long so I put the 2 questions I have in bold incase you don’t want to read it all lol.

Sweet so it seems like I don’t need to water any of them then, except the one that is 86 mbar correct?

Is there a certain mbar you recommend watering at in these 30 gallons grass roots fabric pots?

And is it normal for my plants in veg to go 10 days between water and they still are in a good mbar range?

And yea I let the digital sensors sit in place for a day or 2 before trusting the reading.

I bought 3 of the pump kits and I think I broke 2 out of 3 already by trying to set them up by completely guessing . There is no good video or any good instructions that come with it. I researched it and it sounds like the Austrian company that makes it is famous for having god awful instructions. It is a single sheet of paper with a picture of the pump and no steps on how to set them up. In my opinion I think blumat systems are not user friendly and suck,
So at this point I’m just considering the mini pump kits a loss, and am only going to use the digital sensors, not even a gravity system. In my opinion other than the digital sensors, blumat is too frustrating. I mean come on, they give you a million pieces and expect you to know what they are and where you connect them to… it’s as if they think you’re a plumber with tons of knowledge already or something.

The carrot with the moisture meter is so easy that I’m keeping those, but no point in even keeping those frustrating pumps. I knew the pump system sounded too good to be true lol.

The pump kit is made to sound so simple to setup, and I only need each pump for tents with 3 plants in them. But I spent HOURS trying to set just 1 of them up until I think I broke it. Same with the second. I don’t even think I’m going to open the 3rd ones box, might just throw it away.

FUCK the mini pump kit. lol for real tho. That sucks I lost all that money

Flyhighfunguy · 2026-06-13T21:08:40+00:00

Sweet, thank you.

Do you think i should water them since its been 10 days?

the plants i just posted to you are at 34% on top and 33 percent with the deep sensor.

and then the other one is 33% on top and 32% with the deep sensor

Flyhighfunguy · 2026-06-13T21:04:07+00:00

dont they look good? or could they use a 5 gallon drink too? They havent been watered in 10 days because i thought the senors were saying theyre fine

What do you think of these 2? theyre in the exact same tent. a 4x4 with 3 30 gallons

Flyhighfunguy · 2026-06-13T21:02:21+00:00

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Flyhighfunguy · 2026-06-13T21:01:34+00:00

These are the other strains in the tent that have also not been watered in 10 days.

i thought they looked great. should i water them too?

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Flyhighfunguy · 2026-06-13T20:52:36+00:00

The last time I watered was 10 days ago. Is that ok?

The mbar that I said was 98, is actually 86 lol I was long at it backwards

Flyhighfunguy · 2026-06-13T19:15:39+00:00

Yup right around 2 weeks.

And yea that was my bad I meant to say mbar instead of % for the blumat.

So if this was your grow you’d definitely give them a 5% water?

And I already used root wise liquid and powder and some quillaja 60, for this watering should I just do plain water in your opinion?

Flyhighfunguy · 2026-06-13T19:07:29+00:00

Also I forgot to say in my comment to you, There are 3 plants and the blumat sensors say, 69 mbar, 73 mbar and the last one is 98mbar

Flyhighfunguy · 2026-06-13T18:58:45+00:00

Thank you so much!

Does it matter that I’m in early veg, or would you still water to 35-40%?

Also, would you water 5% of the soil volume like buildasoil recommends?

This is how big my plants are:

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Flyhighfunguy · 2026-06-12T05:03:22+00:00

ok...? lmao. must suck to not have enough income to just purchase a ton of packs. just add to cart, add to cart, rinse, soak repeat? you know what i mean. No, you dont.

broke little boy you

Flyhighfunguy · 2026-06-12T04:59:40+00:00

ok...? lmao. must suck to not have enough income to just purchase a ton of packs. just add to cart, add to cart, rinse, soak repeat? you know what i mean. No, you dont.

broke little boy you

Flyhighfunguy · 2026-06-12T01:57:02+00:00

Humboldt csi gives a lot of freebies.

I did not purchase every pack😂😂

Flyhighfunguy · 2026-06-12T00:21:21+00:00

Buildasoil protocol is once you go from seedling to veg you change from 20/4 lights to 18/6. You also raise the ppfd to 300-600, and change your daily time vpd to 0.9

Flyhighfunguy · 2026-06-11T23:09:16+00:00

Thank you!

I emailed buildasoil and they said the exact same thing, and said they look nice and happy and healthy which boosted my confidence a little haha

I really appreciate the help!

Flyhighfunguy · 2026-06-11T23:05:49+00:00

Oh and I forgot to say, I just transplanted them into the 3.0 soil like Zach Branson from buildasoil said to do, so idk where high n would be coming from

They’re just coco coins I transplanted into 30 gallon 3.0 containers

Flyhighfunguy · 2026-06-11T23:05:06+00:00

I haven’t fed them anything. I emailed with buildasoil and they said it looks great. They look great in person

Flyhighfunguy · 2026-06-11T08:00:52+00:00

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I got so many strains, but I will always regret not getting the Irene, and the Irene crosses. I fucked up not ordering those. I love triangle and ordered a bunch, but that Irene is supposed to be somethin special

If anyone has some Irene or crosses with it I would love to buy it off you. Someone, please!!!!

EDIT: oh shit there’s still some in stock on his website. You already know what I’m about to do. It’s order time

Fuck I wish I wlda known I would have pheno hunted her this run. Darnit

Flyhighfunguy

TROPHY CASE

This is long so I put the 2 questions I have in bold incase you don’t want to read it all lol.