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I just wrap them in white paper or foil. Black is a poor choice if you live in a hot climate, as it will make the solution unbearable for plants.

With a Gasso and black paint foundation, any reason why other colors could not be applied to the jar?

14 min of paint class

Can you plant from seed using this method? I wouldve liked to see this pieces used in application

I think I would place a smal strip of tape on the jar, vertically, before the gesso & paint. Then remove it once it’s all dry. It would be a sliver to enable you to see the nutrient Walter level without removing the net cup to look. And risk damaging the roots. Also shouldn’t you soak the stones first? Great video. Thanks for sharing.

Sorry to bother you again, but you did not say where we could get the black clone collars. Never saw those before. Thanks

I think it is wonderful.

Just use a pool noodle on top. It is cheap. No net cups. just put your plant in the slit of the pool noodles that will hold. Use the open mason jar tops that already have the opening at the top.

He thinks like a English man to complicated to listen to

it hurt to watch you work so hard. Just use black chalk spray paint and painting the jars takes about 1 min a piece. No need for primer or anything.

And...you can buy it already colored in BLACK!

Hi, That white undercoat you're using is pronounced , "jesso"

If you're moving the point two places you multiply it x100

If you have no guesso you can also use rough sand paper to scuff upon the glass

This seems awfully expensive in materials. No DIY alternatives? Oh, I just saw the black sock opt... cool

You’re making it more difficult then it needs to be. You can still do your concentration by the gallon and then dilute for your 750ml. Also you can absolutely mix them . You mix the MB 1st stirring.. Then Magnesium stir Then Calnit

Where did you get the mason jars?

I am new to hydroponics and appreciate your design. I would have thought your plants do not get enough oxygen. Was that ever an issue with certain types of plants?

What happened to the videos?

Did you end up getting a boat? Hope all is well.

I’d love to see your aquaponics system or resources as well.

how in the world did you get $2? Click Bait!

Why does it say $2?

throw ya scale away and get a tspoon and a half tspoon or put it in a draw untill you need to bake a cake Magyver.

its just 1tsp per gallon of MB and CalN and halftsp of Esalt mix 2o* that in 1litre divide 1 litre by 20 and thats how much you use but dont start with 1 litre or you will have more than 1 litre aftre adding nutrients start with 500ml add nutrients then top up to 1 litre divide by 20 and theats your amount per gallon. No need to try and land the Space Shuttle.

Cool Scale i use a Helium filled Balloon with a String line Accross my room and when the balloon falls down to the string line and meets the mark on the balloon i know i got 10grms and there a 5grm mark and a 1 gram mark and i can get all my callibrations and configurations of measurements out of that.

The precipitate is CaSO4

Is that cloning collar 3" or 2.75"?

thanks for the video. did you happen to see exactly how the rolls with shrimp were made? what the ingrediets were?

They also make black gesso

Genius.

Gesso is pronounced like Jesso with a J

Subbed, for your gardening AND your upcoming boat life. Saw you shake your jar and water come out though, see my other comment about custom netcups! You could still use your foam piece/neoprene collar (i just use pipe insulation cut into slices), but if you had solid plastic lining the outside diameter of the lid, you would spill a lot less water in your boat. If 3d printed we could also add an upper lip! This would funnel any water your pour on it, into it, but also obviously stop water spilling if your boat-a-rockin! Reach out to me and I'll CAD design and/or print for anyone. Solving problems and perfecting designs are my passions

I personally would have flipped around the color layers. I would prefer a black prime layer on the glass, and then white on the outside to reflect light. You don't want these jars getting hot! and they definitely can whether you use LED, HID, or sunlight. I've tried plasti-dip and also flexseal, which work great for a simple one-coat light block, on glass or anything else.

if anyone has a friend with a 3d printer -- give them a job to create the perfect netcups for you! I have created many that will be securely and simply held in underneath the mason jar cap ring, and also include the hole you need for air. Also, since we are able to design anything we can imagine, a float gauge is a very useful addition to your 3d printed custom mason jar net cup! I have also printed myself sleeves for outside of the jar to block out the light, but allow me to screw the cover off and lift out the jar so I can peek at the roots whenever we want!

You forgot micro nutrients..which is more important

His parents are Russians guys

You can buy the brown (amber) color jars. Will it be enough to prevent? Or it must be black?

Your other gardening pursuits (in your yard at the end of the video)- would love to know more about those. The trees in buckets make me curious. And are your aquaponics floating in your fish pond... In foam?? I have been looking for ideas of how to off grid my aquaponics and keep thinking that if I can just float my plants in the pond, but can never decide on how. Lastly, totally new to the kratky thing, so this may be obvious, but do you just rinse the coconut fiber off your seedlings when you add them into the jar? I watched your jar build, but you didn't actually put plants or water into the jars... And would love to know how they ended up doing.

Thank you for showing this. I believe, Gesso is pronounced Jesso

A cool and relatable guy with a cool video and a crude, interesting scale. Problem with your mathematics: 7:50 That mix in 150ml takes your solution to 500× strength. Using 15ml of this in 750ml water reduces the strength to 10×. In other words your final 750ml solution will have 1.875g of Ca(NO3)2 and so on.

I slip a black sock over the jar.. easy to slip down to see what is going on and fit snugly.

What a great idea, thanks for sharing!

Great video. Can you please link the supplies you used to make these? can we use chalk paint to be able to write on the jars?

Please don't do this it is incorrect

What are you poisoning now

Wast of time idiot

You've spent so much time calculating, you just needed to invest in a scale, I feel like you're going back to stone age😁😉 thanks for the video! Great information

Awesome vid bro! Glad you made it safe and sound. Enjoy everything Washington has to offer but don't forget you're always welcome in Utah!

stop it with this scale....i was taking a drink and the sight of that made me laugh so hard I spit my beer all over my monitor