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

I've used these and ones like it for a little while now. I've got a hydroponic flood and drain system that's about 5 months old or so. They work as a fantastic base for most plants. They only seem to struggle with large heavier plants like tomatoes. Pictured is some parsley, lettuce, and the shoots you see between the lettuce is ginger we tossed in just to see how it would do.

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.

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.

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

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 this LECA because it was the cheapest I could find for the quantity. As others have mentioned, most of it is not round. If aesthetics are concerning for you, this LECA isn’t for you. I actually think all the variation makes the LECA fit together nicer, and I actually get better results with it. Yes roots stick to it, but roots stick to the round ones too. Yes it’s a little dusty when you get it, but what LECA won’t be? They all rub on each other during shipping. Just rinse it and it’s completely fine. No they do not sink. I don’t know what makes these different than others, but they definitely always float. It doesn’t really bother me, so that’s not a concern. Having said all of that, I’m very happy with it for what it is! It works great and the price is right!

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.