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Can also be used for small hydroponic reservoirs and deep water culture systems
and labeled for ease of use
Ammoniacal Nitrogen 7
plus seaweed
Simply shake well
Rockwool - Gro-Slabs 100cm chikamassa Can also be used forGrodan Gro Slabs are for the second or third stage of a plant's life. Slabs are available in a variety of sizes and come with instructions on the wrapping. These slabs come in clearly marked biodegradable UV resistant poly sleeves. The poly sleeves have several functions; Comfort in handling. Preventing algae growth. Preventing roots and diseases from moving easily from slab to slab. Minimizing evaporation. Enabling full saturation of the slabs before
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