Best size pot for coco in a tent

xtsho

Well-Known Member
I always like to water between feedings, even in coco. This allows for a periodic 'mini-flush' to prevent salt buildup in your media. But always, you can keep this in check easily by testing and comparing the EC/ppm of your feed/flush solution to the EC/ppm of the runoff... something many do not do while they complain about not knowing whether they are feeding too little or too much... TEST THE DAMN RUNOFF! :)
Why?
 

xtsho

Well-Known Member
Can you treat coco any other than hydro?
Some people do add amendments and use coco instead of peat. Adding worm castings, various meals, "bone, crab, etc...", alfalfa, and other amendments. But then I guess you just have a coco based soil.

But when using blumats in 100% coco you're not really watering on a schedule but instead just keeping the coco damp. There is never any runoff. That's my favorite method and I've had great success with it. Just keep your reservoir filled and let gravity and the blumat sensors release water as needed.

These are my first two runs using blumats, 100% coco, and three gallon fabric pots.


 
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mastrmasn

Well-Known Member
Some people do add amendments and use coco instead of peat. Adding worm castings, various meals, "bone, crab, etc...", alfalfa, and other amendments. But then I guess you just have a coco based soil.

But when using blumats in 100% coco you're not really watering on a schedule but instead just keeping the coco damp. There is never any runoff. That's my favorite method and I've had great success with it. Just keep your reservoir filled and let gravity and the blumat sensors release water as needed.
This is the kind of info I’ve been looking for.
So blumats are sensor activated? No timer no run off?
 

xtsho

Well-Known Member
This is the kind of info I’ve been looking for.
So blumats are sensor activated? No timer no run off?

No timer and no runoff. It's all gravity fed down to the blumat sensor in the grow medium. Just put the reservoir higher than the top of the medium. The blumat senses moisture and releases drops of water from a small hose. Coco is really good at distributing moisture. Just make sure there is solution in the reservoir and walk away. I use a small pond pump to keep everything circulating.

 

Flowki

Well-Known Member
No timer and no runoff. It's all gravity fed down to the blumat sensor in the grow medium. Just put the reservoir higher than the top of the medium. The blumat senses moisture and releases drops of water from a small hose. Coco is really good at distributing moisture. Just make sure there is solution in the reservoir and walk away. I use a small pond pump to keep everything circulating.
Do you have any fail safe for flooding?. I read up a lot on them a little while back but the risk of a sensor staying open put me off.
 

mastrmasn

Well-Known Member
No timer and no runoff. It's all gravity fed down to the blumat sensor in the grow medium. Just put the reservoir higher than the top of the medium. The blumat senses moisture and releases drops of water from a small hose. Coco is really good at distributing moisture. Just make sure there is solution in the reservoir and walk away. I use a small pond pump to keep everything circulating.

Just ordered a set lol. I spent my last grow trying to figure out the easiest automation method. Now it’s on its way. One thing though. Should I have gotten the longer maxi ones?

Love the BB btw. That’s what I’ve got going now with some GDP and a sensi star fem for insurance. The others are reg seeds.
 

mastrmasn

Well-Known Member
Some people do add amendments and use coco instead of peat. Adding worm castings, various meals, "bone, crab, etc...", alfalfa, and other amendments. But then I guess you just have a coco based soil.

But when using blumats in 100% coco you're not really watering on a schedule but instead just keeping the coco damp. There is never any runoff. That's my favorite method and I've had great success with it. Just keep your reservoir filled and let gravity and the blumat sensors release water as needed.

These are my first two runs using blumats, 100% coco, and three gallon fabric pots.


What were you using for lights on those?
 

mastrmasn

Well-Known Member
Just a 600 watt HPS.

I've had a blumat stay open a couple of times but my tent is in the garage on concrete so it wasn't an issue.
Same here plus I check in on them a dozen times a day lol. We smoke in there so I’d see it before it became an issue. Super excited to start using them. So sick of mixing nutes and pulling the pots out every day to water to run off.
 

Flowki

Well-Known Member
Just a 600 watt HPS.

I've had a blumat stay open a couple of times but my tent is in the garage on concrete so it wasn't an issue.
What size res and elevation do you use?. I was wondering it it's possible to use multiple smaller raised containers (10L or so?) with 1 or 2 blum per container, so that a leak is more isolated. I can understand it would take more upkeep but given the alternative risk of 60L+ flood.. not so bad.
 

xtsho

Well-Known Member
What size res and elevation do you use?. I was wondering it it's possible to use multiple smaller raised containers (10L or so?) with 1 or 2 blum per container, so that a leak is more isolated. I can understand it would take more upkeep but given the alternative risk of 60L+ flood.. not so bad.
I use an 18 gallon tote elevated about two feet above the top of the grow medium.

I don't see why you couldn't use multiple smaller containers. In fact that would be a good way to use blumats for different strains with different nutrient requirements. That's something I might just do myself. Thanks for the idea.
 

Flowki

Well-Known Member
I use an 18 gallon tote elevated about two feet above the top of the grow medium.

I don't see why you couldn't use multiple smaller containers. In fact that would be a good way to use blumats for different strains with different nutrient requirements. That's something I might just do myself. Thanks for the idea.
Do the blumats require X amount of pressure to operate or is elevation alone enough?. As in, could a blumat completely empty a container or will some remain due to lack of pressure as it empties.

I'm full of ideas, conviction, not so much ^^.
 

xtsho

Well-Known Member
Do the blumats require X amount of pressure to operate or is elevation alone enough?. As in, could a blumat completely empty a container or will some remain due to lack of pressure as it empties.

I'm full of ideas, conviction, not so much ^^.
You don't need any pressure as long as the reservoir is elevated higher than the grow medium. Gravity takes care of the rest.
 

Flowki

Well-Known Member
You don't need any pressure as long as the reservoir is elevated higher than the grow medium. Gravity takes care of the rest.
Ok cheers.

Do you run a low ec value or manually water to run off every so often?.
 
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