Phosphates in aquatic sediments are incorporated into sedimentary rocks, which, when uplifted and weathered, are released into the hydrosphere. Therefore, phosphorus doesn't cycle in aquaria. By adding ferric oxide, you are sequestering the phosphate and removing it from the aquarium water. You didn't tell your viewers to throw the exhausted ferric salt away. Using a phosphate test kit is always a good idea.
![[LIVE] : ONE ลุมพินี 85 | คู่เอก "ยอดเหล็กเพชร vs ผึ้งหลวง"](http://i.ytimg.com/vi/Qq_19bnnxEo/mqdefault.jpg)
Very technical thanks for sharing 👍
Phosphates in aquatic sediments are incorporated into sedimentary rocks, which, when uplifted and weathered, are released into the hydrosphere. Therefore, phosphorus doesn't cycle in aquaria. By adding ferric oxide, you are sequestering the phosphate and removing it from the aquarium water. You didn't tell your viewers to throw the exhausted ferric salt away. Using a phosphate test kit is always a good idea.