Pond Care Ammo-Rocks are ideal for use in ponds and water gardens. New ponds and mature ponds at the start of the season do not have enough nitrifying bacteria to control ammonia and nitrite levels. It can take up to 6 weeks to for the biological filter to fully develop. It is during this break-in period that most fish are killed by ammonia. Ammo-Rocks effectively remove toxic ammonia from your pond.
Features: * Faster biological development * Removes toxic ammonia from your pond * 100% natural zeolite
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