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Live Rock

Определение

Porous calcium carbonate rock from coral reefs used in marine aquariums as biological filtration, providing habitat for beneficial bacteria, coralline algae, and invertebrates.

Подробное объяснение

Live rock's biological value comes from its highly porous structure — each kilogram can have over 1 square meter of internal surface area — hosting aerobic nitrifying bacteria in outer layers and anaerobic denitrifying bacteria in deep oxygen-depleted interior zones. Denitrification converts nitrate to nitrogen gas, completing the nitrogen cycle and keeping nitrate low — critical in reef aquariums housing corals sensitive to nutrient levels. Wild-harvested live rock is increasingly regulated due to reef ecosystem impacts; aquacultured live rock (rock seeded with coralline algae and cured in marine aquariums) provides equivalent biological function without reef harvesting. The diversity of hitchhiker organisms (worms, sponges, crustaceans) on good live rock contributes significantly to aquarium biodiversity.

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