Search  for anything...
Hydrofarm

Hydrofarm GROWT GMC25L 25 Liter Bag, 4mm-16mm Clay Pebbles, 25 Liter Bag, Brown

    • Based on 4,081 reviews
Condition: New
Checking for product changes
$41.87 Why this price?

Buy Now, Pay Later

As low as $10 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Spreetail
Arrives Wednesday, Dec 25
Order within 2 hours and 55 minutes
Available payment plans shown during checkout

Size: 25 Liter Bag


Features

  • Aeration of growing media - ideal to mix into coco coir or soil to aid aeration
  • Drainage - will hold water as well as offering great aeration properties and free draining
  • Decoration - looks great as a top dressing for pots and also helps to prevent evaporation
  • Hydroponics/hydroculture - used widely in hydroponic growing, they are ideal for flood and drain, deep water culture and drip feed systems
  • Aquaponics - are also ideal to be used in aquaponic systems

Description

"GROW!T horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable, and offer great aeration and drainage in hydroponics, especially in flood and drain, deep water culture, and drip feed systems. Due to their unique structure and ability to cover a large surface area, they offer the ideal environment to foster beneficial bacterial growth around the root zone, leading to naturally healthier plants. GROW!T Clay Pebbles benefits: Extremely stable in both pH and EC Made from 100% natural clay Strong structural integrity means that they are less likely to break and compact, which helps to prevent dripper systems from getting blocked Pre- washed to aid in stability Drains freely and does not hold any excess water, providing good oxygen levels around the root; suitable for flood and drain systems, multi-pot and drip feed systems Pebble size 4 mm–16 mm GROW!T Clay Pebbles can be used for: Aeration of growing media - ideal to mix into coco coir or soil to aid aeration Drainage - will hold water as well as offering great aeration properties and free draining Decoration - looks great as a top dressing for pots and also helps to prevent evaporation Hydroponics/hydroculture - used widely in hydroponic growing, they are ideal for flood and drain, deep water culture and drip feed systems Aquaponics - are also ideal to be used in aquaponic systems When used in aeration of growing media, mix GROW!T horticultural clay pebbles into your coco coir or soil at a rate 4 parts clay to 7 parts soil to loosen up the structure, leading to better root development."


Product Dimensions: 20.8 x 7.2 x 20.8 inches


Item Weight: 19.67 pounds


Manufacturer: PLANT!T


Item model number: GMC25L


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Recommended
Size: 40 Liter Bag
This growth medium is great for hydro-gardens. I have been using this product for about a year and this is not my first bag, I have ordered from Amazon and bought locally, no difference at all, cost & function are the same.. My first thoughts were that the roots would get smashed with this medium in the Drip Method because it floats in water then sinks down when drained but that was not the case at all, in fact, my root systems were so healthy that they actually ate the medium up so do not expect to reuse for another crop, you will be lucky to find it within the massive root structure. Needless to say, the end result was amazing and I have never seen roots like that before... huge, pure white, and massive in length.. it was something you just don't see with a soil medium. End results were much healthier roots & stalk and a better tasting, yielding & healthier harvest. No disease or pests to battle since most originate or breed in soil. This is the way to go. 4 stars! *If this review helped you either way, could you please leave me a Helpful to let me know? Thanks!* ... show more
Reviewed in the United States on June 9, 2020 by LifePathin4D
    • Not round clay pebbles, basically clay colored gravel. Seriously.
Size: 10 Liter Bag
Review Image by @theDavidLeach @theDavidLeach
Nothing against the seller, they are simply a distributor and fulfilled the order. I have an issue with the product itself. I have purchased many different brands of clay pebbles over the years. These are by far the worst brand period. Here is why: The Clay Pebbles are not spherical at all. I basically have a bag of clay colored gravel. I cut my hands on several pieces as I tried to fill the little net pots. That's absurd. There is so little clay baked onto the pebble that more of the burnt clay (the dark part of the rocks) remains exposed. This is not an aesthetic complaint. Clay pebbles were created and are favored by agriculturalists and gardners for a simple reason, they are easily washed and resused. However when the micro-pores on the clay pebbles are exposed, as in this case, the roots cling tightly to the pebbles, making them a permanent fixture in the root system ...without ripping them out. NORMAL round clay pebbles easily fall out when you shake the stalk. These are not re-usable and will have to simply be thrown out. And yah... they look like crap next to normal clay pebbles. You can see in the image I provided, the poor quality, non spherical and mostly black rocks, compared to ACTUAL clay pebbles which should be 99% round. ... show more
Reviewed in the United States on March 31, 2017 by @theDavidLeach @theDavidLeach
    • Fantastic!!!!
Size: 40 Liter Bag
Review Image by SportyTracy SportyTracy
Review Image by SportyTracy SportyTracy
Review Image by SportyTracy SportyTracy
Review Image by SportyTracy SportyTracy
Review Image by SportyTracy SportyTracy
Review Image by SportyTracy SportyTracy
WOW, 40 liters is ALOT! LoL. I have a rather large orchid collection (over 50 plants) I want to change over to these mixed with a little moss. fast shipping, nothing damaged. The bag came in a large box, nothing else. These pellets are not completely round or smooth, EXPECT odd shapes and sizes. The MUST be rinsed before use. I ran mine through water few times and gently rubbed all the pellets together. Right now I'm testing how long it takes to sink at the bottom of a jar, they are floating at the moment. I did re pot one smaller orchid and 💜. These are very light weight meaning....for my delicate orchids roots won't be damaged and will create good air pockets with out sufficating the roots. so far I'm in love...once Used more I will do another update. Update 11/11/16. Been soaking 24 hours still float. This doesn't bother me but others it might. Will buy more if I run out. New pictures of 1 orchid I re potted. Great stuff!!! Update 12/09/16 Ok I forgot about some that where soaking, week later they where still floating! For my use it's fine, but others may not like this. ... show more
Reviewed in the United States on November 10, 2016 by SportyTracy SportyTracy
    • Love these
Size: 40 Liter Bag
There is a lot of crabbing about these to the point that I wondered if I made a mistake purchasing them. What I found when they arrived was pretty much what was described. Yes, you do have to wash them before use but I actually liked the process. Sometimes people over think things and make it harder than it has to be... I used a dollar store pitcher, the kind that if you turn the lid one way you can strain your drink or if you turn it the other way you can just pour. I opened the bag... used the pitcher lid like a scoop... scooped the clay pebbles into the pitcher... filled with water and pushed them down a few times.... turned the pitcher top to the strain position and drained them... filled it up again and erepeated the process...after draining the second time I filled the pitcher a third time added some dechlorinating stuff to the water because I used my hose for the rinsing... and that was about it... took ten minutes tops... if your doing a lot of these I would still recommend the pitcher for the first two rinses and then maybe a tub for the last soking... I think it's a good product at a good price and no I didn't get paid anything for this review... it is just my personal experience with this product. Thanks L. ... show more
Reviewed in the United States on May 13, 2017 by Laurita
    • 10 liters is quite a bit - good pebbles
Size: 10 Liter Bag
Review Image by Shannyn Shannyn
Review Image by Shannyn Shannyn
Review Image by Shannyn Shannyn
Review Image by Shannyn Shannyn
Review Image by Shannyn Shannyn
If you are looking for perfectly round pebbles, like on the photo on the bag, look elsewhere. I read the reviews, so I was aware of what I was getting. Most of the pebbles were irregular shaped and looked like odd lava rock, but that does not affect my hydroponics system. I use a combination of hydroton in the bottom of each tier of the system and then in the grow baskets surrounding my roots. I used to grow directly in the tiers, in perlite, but I have always enjoyed hydroton, and this way I also have more control over the root system so that it does not clog my system. I just ordered a 40 ltr bag because 10 ltrs was only enough to make a short foundation in each of the tiers of one system. Since I completely switched over from Perlite this year, I need a lot. I soaked first (see picture of pebbles in the pink tub) and then I drained and strained. Towards the bottom, I strained and rinsed again in the strainer. A lot of mud and residue comes off of these, so be sure to soak and rinse before adding it to your systems. Obviously, I will check pH once I get everything set up for the plants, as I know that having this much hydroton will likely change the water balance, but that is okay. I also used this same brand in an aquaponics system, and I grew strawberries, mint and chamomile successfully. The hydroton did not bother the fish. ... show more
Reviewed in the United States on May 6, 2017 by Shannyn Shannyn

Can't find a product?

Find it on Amazon first, then paste the link below.