{"id":22610,"date":"2025-06-02T15:31:24","date_gmt":"2025-06-02T13:31:24","guid":{"rendered":"https:\/\/aquaforest.eu\/?post_type=docs&#038;p=22610"},"modified":"2025-06-02T15:36:13","modified_gmt":"2025-06-02T13:36:13","password":"","slug":"im-using-po4-minus-after-changing-the-media-i-see-a-drop-in-kh-magnesium-and-calcium-is-the-media-causing-this-why","status":"publish","type":"docs","link":"https:\/\/aquaforest.eu\/it\/knowledge-base\/im-using-po4-minus-after-changing-the-media-i-see-a-drop-in-kh-magnesium-and-calcium-is-the-media-causing-this-why\/","title":{"rendered":"I\u2019m using PO4 Minus. After changing the media, I see a drop in KH, magnesium, and calcium. Is the media causing this? Why?"},"content":{"rendered":"\n<p>Yes, <strong>Phosphate Minus KH drop<\/strong> is a known side effect. Phosphate Minus is a filtration medium that selectively binds phosphates from the water. However, its use may slightly influence <strong>KH (carbonate hardness)<\/strong> due to its chemical activity. Drops in <strong>magnesium and calcium<\/strong> are typically unrelated, but they may appear due to other factors like biological consumption or testing variations. Regular monitoring and balanced dosing will help maintain stable parameters.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yes, Phosphate Minus KH drop is a known side effect. Phosphate Minus is a filtration medium that selectively binds phosphates from the water. However, its use may slightly influence KH (carbonate hardness) due to its chemical activity. Drops in magnesium and calcium are typically unrelated, but they may appear due to other factors like biological [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"doc_category":[1337,1342],"doc_tag":[1315,556],"class_list":["post-22610","docs","type-docs","status-publish","hentry","doc_category-filtration","doc_category-kh","doc_tag-articles","doc_tag-phosphate-minus"],"acf":[],"year_month":"2026-03","word_count":69,"total_views":"874","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"krzysztof.mandecki@aquaforest.pl","author_nicename":"krzysztof-mandeckiaquaforest-pl","author_url":"https:\/\/aquaforest.eu\/it\/author\/krzysztof-mandeckiaquaforest-pl\/"},"doc_category_info":[{"term_name":"Filtration","term_url":"https:\/\/aquaforest.eu\/en\/knowledge-base-category\/filtration\/"},{"term_name":"KH","term_url":"https:\/\/aquaforest.eu\/en\/knowledge-base-category\/kh\/"}],"doc_tag_info":[{"term_name":"Articles","term_url":"https:\/\/aquaforest.eu\/en\/knowledge-base-tag\/articles\/"},{"term_name":"Phosphate Minus","term_url":"https:\/\/aquaforest.eu\/en\/knowledge-base-tag\/phosphate-minus\/"}],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Phosphate Minus KH drop \u2013 can the media cause this?<\/title>\n<meta name=\"description\" content=\"Experiencing changes in KH after using Phosphate Minus? Learn what effect the media may have on your reef tank\u2019s chemistry.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aquaforest.eu\/it\/knowledge-base\/im-using-po4-minus-after-changing-the-media-i-see-a-drop-in-kh-magnesium-and-calcium-is-the-media-causing-this-why\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Phosphate Minus KH drop \u2013 can the media cause this?\" \/>\n<meta property=\"og:description\" content=\"Experiencing changes in KH after using Phosphate Minus? 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