CANNACoco Brick 40L Expandable Natural Plant Medium Soil Substrate, 40 Liter Expanded - 8 Liter Dry, Reusable (4)

Q: How many of these 40L would it take to fill 4, 5 gallon buckets?

Two of these will fill four grow bags that are 5 gallon size very well. Inside there are two dried bricks that are meant to break in half as needed, making a total of four squares half the length and the same width as shown. Each of the four squares in the package will fill a 3 gallon grow bag, or two each in two separate 5 gallon grow bags or the whole package fills one ten gallon grow bag. I recommend going twice as large as you think you need. One 10 gallon works better than two 5 gallons if it fits. I would try two 10 gallons instead and let them live a little and reach capacity easier while draining better so that you can water them "just what they need" everyday instead of all they can handle every two or three days. Drier is better. Daily helps more. Watering modest amounts daily adds more total water volume so you can get by on lower ppms while increasing uptake and keeping it so dry it is never too wet. Ent wisdom!

Q: If i soak this in boiling RO water will it kill any fungus gnats it comes with? i read in the reviews that some may contain fungus gnats

Never had that problem. I soaked it in water and liquid fertilizer. Plants took off quickly. This stuff is really clean.

Q: Do i use regular water to expand the coco or must i use a mix of full strength nutrients. i was told i'm not supposed to expand it with just water?

I've used coconut coir for 2 outdoor gardening seasons. I blend with various compost and vermiculite and fill buckets or grow bags. I expand the brick with rain water or tap water that I have allow to sit for a day or two. When I make my blend I add organic feritilizer to the mixture but don't expand the brick with a mineral/fertilizer/nutrient rich solution. That being said, what you use would probably depend on your purpose.

Product ID: 740205634

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Details

Brand
CANNA
Style
Brick
Item volume
8 Liters

🌱40L expanded volume

🪴100% organic coco material

♻️Reusable & sustainable

Frequently Bought Together

Canna Coco Brick 40L Expandable Natural Plant Medium Soil Substrate, 40 Liter Expanded - 8 Liter Dry, Reusable (4)

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Canna Cannazym 1 Liter

Description

🌿 Grow smarter, not harder — expand your garden’s potential!

TRUSTED BRAND QUALITY - Manufactured by Canna, a leader in professional horticulture
LIGHTWEIGHT YET ROBUST - 12.7 kg of premium substrate that’s easy to handle and durable
MAXIMIZED GROWTH SPACE - Expands from 8L dry to 40L for ultimate root development
PURE ORGANIC COCO BASE - Natural plant medium ensures healthy, chemical-free growth
ECO FRIENDLY REUSABLE - Sustain your garden with a soil medium that’s built to last

CANNACoco Brick is a 100% organic, expandable plant medium that transforms from 8 liters dry to 40 liters expanded, providing a sustainable, reusable substrate ideal for professional and home growers seeking healthy root development and eco-conscious gardening.

Specifications

Item Weight	12.7 kg
Material type	Coco
Item volume	8 Liters
Manufacturer	Canna
ASIN	B010OG1ME2

Have a Question? See What Others Asked

How many of these 40L would it take to fill 4, 5 gallon buckets?

If i soak this in boiling RO water will it kill any fungus gnats it comes with? i read in the reviews that some may contain fungus gnats

Do i use regular water to expand the coco or must i use a mix of full strength nutrients. i was told i'm not supposed to expand it with just water?

What is the dry weight of the bricks?

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