{"product_id":"test-magnesium","title":"Magnesium water test in drops, freshwater","description":"\u003cp\u003eThis drop-based test measures \u003cstrong\u003emagnesium\u003c\/strong\u003e from \u003cstrong\u003e0 to 10 mg\/L\u003c\/strong\u003e in freshwater, whether in a planted aquarium or in aquaponics. Magnesium is the central atom of chlorophyll, and a plant deficient in it will yellow between the veins.\u003c\/p\u003e\u003cp\u003eAn iron deficiency produces the same yellowing, but it starts with the young leaves, whereas a magnesium deficiency starts with the lower leaves.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":53039635661123,"sku":null,"price":17.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/6410\/8099\/files\/test-magnesium-eau-douce-boite_3d410045-4a6e-4165-b60f-008c1d7a11c9.jpg?v=1788625379","url":"https:\/\/www.univers-aquaponie.com\/en-sea\/products\/test-magnesium","provider":"Univers Aquaponie","version":"1.0","type":"link"}