GROW!T GMC40l - 4mm-16mm Clay Pebbles, Brown, (40 Liter Bag) - Made from 100% Natural Clay, Can be used for Drainage, Decoration, Aquaponics, Hydroponics and Other Gardening Essentials

Clean and works well

Starting my semi-hydro plant journey and bought these. They're not like the perfect orange-y colored balls that you see some people using. These are a regular brown color and are more irregularly shaped, but that's fine for me because I had read it's actually easier to situate your plant in the irregular-shaped leca instead of the perfect balls. For the most part these haven't sunk after soaking them in water (even after soaking for weeks), but I don't think that really matters as far as actually using these for planting because none of the plants I've moved to leca have died and it's been a couple months now.

Hydrofarm clay balls to keep moisture in my snake terranium. A great component for making a waterfall

Ok, while soon many questions regarding this product have surfaced, and there is conflicting data, I have done research. I have DONE SERIOUS NUMBER CRUNCHING FOR EVERYONE, NOT BIASED AND NOT A PAID ENDIRSMENT. While this product will not be suitable for aeroponic use, as it floats more than sinks... It will displace water and will not alter ph. A 40 liter bag is 1.4 cubic feet- the bag will come to. Just about your knees and is about a foot wide. (See photos) Upon rinsing and reweighing after days of dying, I found that 14.3 ounces were lost. Upon a second testing on another bag- twice that was lost, so a great variance is seen upon batches. This product is often hated as of "... So much orange water and rust left behind" after initial rinsing and being held in a 5 liter, 10 liter and 20 liter containers filled 3/4 respectively and equivalent quantity of tap water with a ph of 6.8, with rather high levels of phosphate, though no ammonia, nitrates, nitrites, nor more than a slight reading of chlorine, left for 1 month the following was found: the 5 liter container retained NO discoloration and .7 ounces of "rust" whereas the larger containers in fact, oddly- all results were found after repeated twice, left no orange water and almost no rust. So, the less you use- the more is left behind. This may be due to several reasons. Of which comes down to NOTE: -results are being sent to chemists, an organic biologist and numerous PhDs and waiting to revise with findings on this and a couple other oddities which require determinations from colleagues- In summation, this is a fantastic all around medium which is inexpensive, versatile, and when mixed with a few bags- consistency (obviously) becomes less of a con. I have used other products, I have used every other product available to the public. Findings: while other products may be superior- until their prices come down, expanded clay will be the continued choice for DWC, Gravity fed Dripers, and more advanced timer based drip systems, among other systems including a cheap GREAT way to ensure your soil is constantly well drained and consistently consistent. Any further questions? PLEASE ASK, I have MORE data to come! Thanks for your interest, and time.

If you require these, you already know what you need them for. The build quality is excellent. They are simple to setup and easy to use. They do an outstanding job of storing and transporting your water & nutrients. These are the golden standard of leca. Absolutely highly recommended.

I bought these for my flood and drain set-up. You have to clean these very well as they have a lot of powder from production. As I was cleaning I was worried because they all floated. I made sure all of the water was out of my barrels and filled to the top with rock. I then flooded them and I was very happy because the weight of the pebbles where enough to keep from floating up and over the sides. There is also maybe an inch of dry rock at the top of my system to prevent the growth of alge. They are perfect for my halfbarrel flood and drain. Also if your interested took just about 6 to fill 2 half barrels. Its a lot of money but after digging out my $150 of rock that tested fine with vineger but then the ph started creeping up was not fun either. This pebble is so light and easy on the hands to work with and should withstand for so long I'm happy with the investment.

I used this to act as a drainage medium for a reptile vivarium. A lot of people complained about the pieces not being perfect balls. For me, this didn't matter, especially since when I think of "pebbles," I tend to think of imperfect little pieces. The clay pebbles do vary in size, with a marginal amount being tiny enough to slip through a strainer. However, it is quite a large bag and I had plenty leftover. For my purpose, it works quite well. It helps to keep the humidity in the tank without leaving any standing water. I have yet to see any sort of mold or fungus growth. I am quite pleased! Hint for cleaning: I divided the bag into manageable amounts and used an old strainer to rinse them off with the hose until the water runs clear. This a longer process but helps to thoroughly rid yourself of all the dust. I originally tried just throwing everything into a large bin, filling with water, and pouring out the water but I still ended up with dusty water. Do yourself a favor and clean thoroughly the first time around.

You get A LOT for what you pay, but I struggle with this brand because they float so easily. Makes it harder to thoroughly clean them, and also makes it hard to water the plants. I find I have to mix in another brand of leca that’s more compact and heavy in order to offset the floating. It’s a solid budget option. I’m still saving a bit by not having to buy as much of the expensive stuff, but not as much as I hoped.

El producto es tal cual el descrito, sin embargo enconte en mercado libre la misma marca con 5 veces mas producto y con un 20% mas barato.

Bien recu

I've been using the Grow!T GMC10L Horticultural Clay Pebbles in my hydroponic system. It has several benefits but also a few minor issues. Pros: The 4mm-16mm size range is ideal for most hydroponic setups. The clay pebbles provide excellent aeration and drainage. The 10L volume offers good value for the price. They are reusable after cleaning, making them environmentally friendly. Cons: The pebbles can be dusty upon arrival and require rinsing. They may float initially in the hydroponic system until fully waterlogged. The bag can contain some smaller fragments and dust. They can be heavy, which might affect some lightweight systems. My conclusion: The Grow!T GMC10L Horticultural Clay Pebbles are a solid choice for hydroponic gardening. Despite minor inconveniences, they provide good aeration and drainage, and are reusable. If you're a hydroponic gardener, these pebbles are worth considering.

Good size balls and not too much.dust

Good product. Clean. Prompt delivery.