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GMC40l clay pebbles 40 liter bag, brown

Hydrofarm ★ 4.1/5 · ItemOracle Score Mid-Range

$54 USD
Price subject to change
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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

Clay pebbles for drainage, decoration, aquaponics and hydroponics. Made from 100% natural clay and pre-washed for stability; flows freely to maintain root oxygen. Customers note good quality and value, with some variability in size and debated float behavior

Highlights

  • Stable pH and EC
  • Pre-washed for stability
  • Good oxygen around roots

Pros

  • 100% natural clay
  • Pre-washed for stability
  • Drains freely, supports oxygen around roots
  • Versatile for drainage, decoration, hydroponics
  • Affordable quality for the category

Cons

  • Mixed feedback on pebble size/shape
  • Some reports on floatability vs sinking

Best For

  • drainage layer for pots
  • hydroponic systems
  • aquaponics setups
  • seedling transplantation
  • decoration and ground cover
  • garden drainage or fill material

Features

  • Made from 100% natural clay and pre-washed for stability
  • Extremely stable in pH and EC for reliable growing conditions
  • Drains freely to prevent excess water and improve root oxygen
  • Will not float once fully wet, maintaining position in media
  • Suitable for drainage, decoration, aquaponics, hydroponics and gardening uses

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