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Orchid Nerd ™ Sponge Rock 2 Cubic Foot Box.

Orchid Nerd ™ Sponge Rock 2 Cubic Foot Box

  • 5200

Sponge Rock

Sponge rock, also known by the name Perlite, is a very common ingredient in orchid mixes and for good reason. Sponge rock decreases compaction of mix, increases aeration and retains moisture. Sponge rock is a volcanic glass that expands when heated and becomes very porous.

  •  medium size sponge rock

     

     

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