{"id":36139,"date":"2025-01-24T14:01:49","date_gmt":"2025-01-24T11:01:49","guid":{"rendered":"https:\/\/www.tiigikalad.ee\/id\/sera-o2-test\/"},"modified":"2025-07-03T11:28:27","modified_gmt":"2025-07-03T08:28:27","slug":"sera-o2-test","status":"publish","type":"product","link":"http:\/\/www.tiigikalad.ee\/en\/e-shop\/water-treatment\/sera-o2-test\/","title":{"rendered":"Sera O2 Test"},"content":{"rendered":"<p><b>Do you know your pond oxygen level under ice or during a hot summer?<\/b> The Sera O\u2082 Test allows you to quickly and affordably measure the oxygen content in ponds and aquariums.<\/p>\n<p><strong>Why is it important to monitor oxygen levels in water?<\/strong> Oxygen is vital for all living organisms in both aquariums and ponds. A sufficient oxygen level ensures a healthy and stable environment for fish, supports plant respiration, and prevents fish from suffocating due to oxygen deficiency.<\/p>\n<p><b>Kit includes:<\/b><\/p>\n<ul>\n<li>2 reagent bottles<\/li>\n<li>Measuring vial for easy water sampling and color comparison<\/li>\n<li>Color chart for result interpretation<\/li>\n<\/ul>\n<p><b>Instructions for use:<\/b><\/p>\n<p style=\"padding-left: 40px;\"><b>Note:<\/b> When drilling a hole in the ice to take a sample, avoid excessive stirring, as it may temporarily raise the oxygen level and give an inaccurate result.<\/p>\n<ol>\n<li>Rinse the measuring vial several times with the test water and fill it to the top. Dry the outside of the vial.<\/li>\n<li>Add 6 drops of the first reagent.<\/li>\n<li>Add 6 drops of the second reagent, close the vial with the cap, and shake gently.<\/li>\n<li>Compare the resulting color with the color chart by placing the vial on the chart and evaluating the color in daylight. Avoid direct sunlight.<\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><b>Oxygen level interpretation and recommended actions:<\/b><\/span><\/p>\n<ul>\n<li><b>0.5 mg\/L<\/b> \u2013 dangerously low \u2013 insufficient for fish<\/li>\n<li><b>2.0 mg\/L<\/b> \u2013 severe deficiency \u2013 only suitable for hardy fish (e.g. <a href=\"http:\/\/www.tiigikalad.ee\/e-pood\/kalad\/karplased\/kuldkala\/\">goldfish<\/a>)<\/li>\n<li><b>4.0 mg\/L<\/b> \u2013 acceptable for most fish species (except <a href=\"https:\/\/www.tiigikalad.ee\/e-pood\/kalad\/forell\/\" target=\"_blank\" rel=\"noopener\">trout<\/a>)<\/li>\n<li><b>6.0 \u2013 8.0 mg\/L<\/b> \u2013 good oxygen level for all fish species<\/li>\n<\/ul>\n<p><b>Care and storage:<\/b><\/p>\n<ul>\n<li>Thoroughly clean the measuring vial and cap with tap water before and after each use<\/li>\n<li>Close reagent bottles tightly after use and do not swap the caps<\/li>\n<li>Store the product at room temperature and protect it from light<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><b>Do you know the oxygen level in your pond under the ice?<\/b> The Sera O<sub>2<\/sub> Test Kit allows quickly and affordably measure the oxygen content in pond and aquarium water.<\/p>\n","protected":false},"featured_media":31842,"template":"","meta":[],"product_brand":[],"product_cat":[1517,425],"product_tag":[1524,1523],"class_list":{"0":"post-36139","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-air-pumps-diffusers","7":"product_cat-water-treatment","8":"product_tag-oxygen-test","9":"product_tag-sera-en","10":"product_shipping_class-s","12":"first","13":"instock","14":"sale","15":"taxable","16":"shipping-taxable","17":"purchasable","18":"product-type-simple"},"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":2,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sera O2 Test - Tiigikalad.ee<\/title>\n<meta name=\"description\" content=\"Do you know the oxygen level in your pond under the ice? 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