Small five to ten millimeter clay pebbles
Affordable · Leca clay pebbles
Hydroponics
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RAINFLOW
Rainflow Hydroponics
Gardeners use these clay pebbles to provide stable support and drainage for indoor plants. This medium works well for root health in various hydroponic setups
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The lineup
Current system from RAINFLOW
The gist
Natural clay balls
These pebbles provide a stable base for plant roots.
Uniform sizing
The 5-10mm diameter ensures consistent spacing and airflow.
Versatile gardening use
This medium works for both hydroponics and general gardening.
From use
Notes from buyers
The 5-10mm size is perfect for my small net cups.
These clay balls stay clean and keep my plant roots well-aerated.
I use these pebbles in my indoor garden for better drainage.
About this lineup
Clay Pebble Standards
These listings focus on Leca clay pebbles designed for plant support. The material is sized specifically for optimal moisture retention and aeration.
- 5-10mm clay balls
- Leca growing medium
- Gardening support pebbles
- Porous structure for roots
- Lightweight expanded clay
- Inorganic planting substrate
Why these models
Root zone aeration
The round shape of these pebbles allows air to circulate around the roots. This helps prevent rot in hydroponic systems.
Consistent 5-10mm size
Small, uniform balls fit easily into net pots. They support everything from small herbs to larger decorative plants.
Leca material benefits
Clay pebbles are durable and do not break down easily. You can clean and reuse them for multiple growing cycles.
Multi-purpose application
These work as a primary substrate or a drainage layer. They are compatible with most hydroponic reservoirs.
Quick answers
Rainflow Questions
What size are the clay pebbles?
These Leca balls are sized between 5-10mm for consistent gardening use.
What are these pebbles made of?
They are made of expanded clay, often referred to as Leca.
Can I use these for indoor plants?
Yes, these are designed for indoor gardening and hydroponic plant support.
Do these help with drainage?
The round clay balls create spaces that allow for excellent drainage and airflow.