• Stonewool is recognized the world over as the ideal hydroponics growing substrate.
  • Grodan stonewool is known for its quality, consistency and performance.
  • These Mini-Blocks are excellent for starting seeds and cuttings and are easily transferred to larger stonewool slabs once roots have been established.
  • Comes in either three strips of 15 wrapped Mini-Blocks totaling 45 blocks each measuring 1.5" square or Two strips of 12 wrapped Mini-Blocks totaling 24 block each measuring 2" square.

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