I’m thinking about trying this medium. What are some of the better brands of coco bricks? I don’t want to hydrate them only to discover I have a tub full of saw dust. Any help from you coco gurus is greatly appreciated.
I have bought several different blocks off of Amazon and they have been great. I’m not a pro coco grower but so far doing well.
This is the one I just bought, on the pricey side I know.
https://www.amazon.com/Plantonix-Coco-listed-Organic-Bricks/dp/B01N1YP8O6
Added in some perlite. Working great.
Ive also used this brand which is in my current flowering tent.
https://www.amazon.com/Coconut-Choir-Bricks-4-Brick/dp/B06Y2K5JMB
I have used some solid coco bricks from home depot. They were like $2.97 each and they worked fantastic. Viagrow I think the brand was.
Hopefully this helps. 
I don’t grow in coco but I do add this to my Fox Farm Ocean Forest soil. I add CalMag to the water when I hydrate it. I pick it up at a local garden center. No dust. Nice fibrous threads.
Canna coco in the bags. It’s pre-buffered to prevent cal-mag issues associated with growing in coco.
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Canna coco bags are great. But the bricks of Canna are amazing as well. It’s the only coco brand that I have used that was perfect right out of the bag. I tried the coco bliss brand and the ph continuously dropped on me. I will also add that running pure coco with no perlite will allow your feedings to remain every other day instead of every day, or even twice a day.
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There are no drainage problems without perlite?
Coco can only hold so much water no matter how much you pour into it. With soil, overwatering can make it turn into a sludgy paste. The only time you could over water coco would be if you had a new seedling in a big pot and kept it soaked. But in a solo cup, your good to go
Hi kid’,
hey are you putting a seed directly into the watered Coco in a Dixie cup or are you germinating it first, soaking it in water for 24 hours and then putting it into a paper towel and into the baggy thing and waiting for it to sprout a tail before you put it in the Coco? Are you putting just water in the coco or other things also?
I just did the soak for 24 hours and the GG seed split just on one side and then I planted it in a pete pellet just like the apotforpot directions say to. I planted that May 1st and still nothing has popped above the pete yet so I am assuming this attempt failed. I’ve even turned on the light above the pellet starting on the second day for about five hours a day but still no difference.
(I also dipped a few fingers in water and let only like 3 to 4 drips drip onto the top of the pellet hoping if I gave it just a tad of water it might pop and no go) this is my first attempt at growing, I know nothing about green thumbs. Thanks for any help
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Yep just put the seeds directly into coco about a ½ inch down and keep it wet, not soaked. Make sure temperature is high 70s to low 80s
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Did you wash and buffer the plantonix brick before you used it? Reading the description on Amazon it sounds as if it’s not needed.