Hydroton For Orchid Plants | LECA Clay Balls


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★ Hydroponics & Aquaponics ★ Water absorbers ★ Controls weeds
★ Improves aeration in soil ★ Prevents root damage ★ Maintain moisture
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Clay pebbles or hydroton (sometimes referred to as LECA—light expanded clay aggregate) are a hydroponic substrate with units about the size of marbles or peanuts. Clay pebbles can be used in both hydroponic and aquaponic systems


  • Hydrotons are great water absorbers, it collects the excess water and stores it for later use.
  • It prevents roots from being damaged due to excess water.
  • Generally, clay pebbles are used as a base layer or alongside to help plants get the proper amount of water and air through it
  • Clay can be used on its own for growing plants
  • It can also be mixed with soil and other growing media.
  • Hydroton is used widely in hydroponics and aquaponics.


  • Rinse the pebbles thoroughly before using
  • Soak the pebbles for at least six hours or, even better, up to 24 hours.
  • Remove the plants and rinse occasionally.
  • Add a small amount of nutrients after rinsing your pebbles.

Give starting your seeds a try using clay pebbles. You can crush the medium to increase saturation or you can keep them whole, use small net pots, and cover the seed with a couple of pebbles.

  • Don’t reuse the pebbles without rinsing, soaking, and sterilizing with isopropyl alcohol or peroxide.
  • Don’t let the pebbles dry out.
  • Don’t use a regular pot unless you have a dedicated water source. Using regular pots can sometimes lead to algae and draining issues.
  • Don’t use the pebbles as a substitute for soil outdoors.


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