MDPQT Hydroponics
These organic expanded clay pebbles provide a stable and porous medium for indoor plants. They work well for orchids, succulents, and hydroponic systems
1 system in this lineup
Organic clay
These pebbles are made from expanded organic clay.
Bulk supply
This catalog features 11LB bags for large projects.
Multi-plant use
The rocks work for orchids, succulents, and soil mixes.
From this set
The 11LB bag was exactly the right amount to fill several large hydroponic buckets.
I mixed these clay pebbles into my orchid mix to improve the drainage.
These rocks are very clean and provide great support for my indoor succulents.
Expanded Clay Details
These 11LB bags of organic expanded clay pebbles are designed for use as hydroponic rocks. They provide aeration and drainage for various plant types.
- 11LB bag weight
- Organic expanded clay
- Porous rock structure
- Hydroponic growing medium
- Orchid and succulent support
- Soil amendment use
Neutral growing medium
The clay pebbles do not affect the pH of your water. This makes them a reliable choice for sensitive hydroponic setups.
Drainage and aeration
The round shape of the pebbles creates air pockets. This prevents soil compaction and helps roots breathe.
Moisture retention
The porous surface holds onto water while allowing excess to drain. This is helpful for orchids that need high humidity.
Indoor plant support
You can use these as a top dressing for succulents or mix them into soil. They help stabilize plants in hydroponic net pots.
MDPQT Questions
What size bag is available?
This listing is for an 11LB bag of clay pebbles.
Are these pebbles organic?
Yes, these are organic expanded clay pebbles.
What plants can use these rocks?
They are used for orchids, succulents, and general hydroponic indoor plants.
Can I use these in soil?
Yes, they can be used as a soil amendment or as a base for hydroponics.