{"id":7076,"date":"2021-01-04T10:38:09","date_gmt":"2021-01-04T08:38:09","guid":{"rendered":"https:\/\/medusea.es\/information\/nitrogen-cycle-in-jellyfish-aquariums\/"},"modified":"2025-08-05T11:56:55","modified_gmt":"2025-08-05T09:56:55","slug":"nitrogen-cycle-in-jellyfish-aquariums","status":"publish","type":"page","link":"https:\/\/medusea.es\/en\/information\/nitrogen-cycle-in-jellyfish-aquariums\/","title":{"rendered":"Nitrogen Cycle in Jellyfish Aquariums"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7076\" class=\"elementor elementor-7076 elementor-3069\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8624848 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8624848\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-19152132\" data-id=\"19152132\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e08a980 elementor-widget elementor-widget-breadcrumbs\" data-id=\"e08a980\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/medusea.es\/en\/home\/\">Inicio<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-38557fe elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38557fe\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2358e4f\" data-id=\"2358e4f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-439ffab elementor-widget-divider--separator-type-pattern elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"439ffab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\" style=\"--divider-pattern-url: url(&quot;data:image\/svg+xml,%3Csvg xmlns=&#039;http:\/\/www.w3.org\/2000\/svg&#039; preserveAspectRatio=&#039;none&#039; overflow=&#039;visible&#039; height=&#039;100%&#039; viewBox=&#039;0 0 24 24&#039; fill=&#039;none&#039; stroke=&#039;black&#039; stroke-width=&#039;2&#039; stroke-linecap=&#039;square&#039; stroke-miterlimit=&#039;10&#039;%3E%3Cpath d=&#039;M0,6c6,0,0.9,11.1,6.9,11.1S18,6,24,6&#039;\/%3E%3C\/svg%3E&quot;);\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5a3645 elementor-widget elementor-widget-heading\" data-id=\"c5a3645\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is the Nitrogen Cycle and Why Is It Necessary for My Aquarium?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1161641 elementor-widget elementor-widget-text-editor\" data-id=\"1161641\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A jellyfish tank is essentially a marine aquarium that will house animals\u2014our jellyfish. In creating a closed, isolated, and healthy environment, it&#8217;s essential to have a mature biological filter where the nitrogen cycle can take place. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf5f16b elementor-widget-divider--separator-type-pattern elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"cf5f16b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\" style=\"--divider-pattern-url: url(&quot;data:image\/svg+xml,%3Csvg xmlns=&#039;http:\/\/www.w3.org\/2000\/svg&#039; preserveAspectRatio=&#039;none&#039; overflow=&#039;visible&#039; height=&#039;100%&#039; viewBox=&#039;0 0 24 24&#039; fill=&#039;none&#039; stroke=&#039;black&#039; stroke-width=&#039;2&#039; stroke-linecap=&#039;square&#039; stroke-miterlimit=&#039;10&#039;%3E%3Cpath d=&#039;M0,6c6,0,0.9,11.1,6.9,11.1S18,6,24,6&#039;\/%3E%3C\/svg%3E&quot;);\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e62cfc elementor-widget elementor-widget-heading\" data-id=\"4e62cfc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Is It Needed?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2377196 elementor-widget elementor-widget-text-editor\" data-id=\"2377196\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>All animals produce waste. Jellyfish do not excrete solids but instead release waste products that dissolve in the water. In addition to jellyfish excretions, there are wastes from decomposing food. <\/p><p>These waste products\u2014mainly ammonia (NH\u2083)\u2014are invisible but present. They must be eliminated because over time, they turn the water toxic, and jellyfish cannot survive in it. <\/p><p>While you could perform daily water changes to remove ammonia, this is not practical. The best solution is to have a <strong>filter<\/strong> that transforms ammonia into less toxic molecules. That\u2019s why it\u2019s so important to have a healthy, <strong>mature biological filter<\/strong>.        <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0bdc1a0 elementor-widget-divider--separator-type-pattern elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"0bdc1a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\" style=\"--divider-pattern-url: url(&quot;data:image\/svg+xml,%3Csvg xmlns=&#039;http:\/\/www.w3.org\/2000\/svg&#039; preserveAspectRatio=&#039;none&#039; overflow=&#039;visible&#039; height=&#039;100%&#039; viewBox=&#039;0 0 24 24&#039; fill=&#039;none&#039; stroke=&#039;black&#039; stroke-width=&#039;2&#039; stroke-linecap=&#039;square&#039; stroke-miterlimit=&#039;10&#039;%3E%3Cpath d=&#039;M0,6c6,0,0.9,11.1,6.9,11.1S18,6,24,6&#039;\/%3E%3C\/svg%3E&quot;);\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de8c67f elementor-widget elementor-widget-heading\" data-id=\"de8c67f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Who Carries Out the Nitrogen Cycle?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4eaa673 elementor-widget elementor-widget-text-editor\" data-id=\"4eaa673\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tNitrifying bacteria in your biological filter do the work. Through oxidation reactions, they convert:\n\n<strong>Ammonia (NH\u2083) <\/strong>\u2192 Nitrites (NO\u2082\u207b) \u2192 still toxic<br><strong>Nitrites (NO\u2082\u207b)<\/strong> \u2192 Nitrates (NO\u2083\u207b) \u2192 less toxic<br>To prevent nitrate buildup, perform a partial water change about every 10 days.  \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d36db0 elementor-widget-divider--separator-type-pattern elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2d36db0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\" style=\"--divider-pattern-url: url(&quot;data:image\/svg+xml,%3Csvg xmlns=&#039;http:\/\/www.w3.org\/2000\/svg&#039; preserveAspectRatio=&#039;none&#039; overflow=&#039;visible&#039; height=&#039;100%&#039; viewBox=&#039;0 0 24 24&#039; fill=&#039;none&#039; stroke=&#039;black&#039; stroke-width=&#039;2&#039; stroke-linecap=&#039;square&#039; stroke-miterlimit=&#039;10&#039;%3E%3Cpath d=&#039;M0,6c6,0,0.9,11.1,6.9,11.1S18,6,24,6&#039;\/%3E%3C\/svg%3E&quot;);\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9726120 elementor-widget elementor-widget-heading\" data-id=\"9726120\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How Do I Start the Cycle?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ddee029 elementor-widget elementor-widget-text-editor\" data-id=\"ddee029\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Set up your jellyfish tank with saltwater, adjusted to the right salinity and temperature.  <\/p><p>Place the bio-balls or filter media into their compartment.<br>At this stage, the water may look ready\u2014but it\u2019s not a safe habitat yet. If jellyfish are added now, they may not survive the week.   <\/p><ol><li>How to Start the Biological Cycle: <br>The filter media needs to be colonized by nitrifying bacteria. These need a food source\u2014in this case, ammonia. Once ammonia is present, the bacteria begin to grow. You can do this in several ways: <\/li><li>Method 1: Natural Cycling<br>Add a bit of food and allow it to rot and produce ammonia.<br>Wait 4\u20136 weeks for bacteria to naturally colonize the filter and complete the cycle.<br>Method 2: Food + Bacteria Starter<br>Add food to create ammonia.<br>Inoculate with bacteria from commercial products like Stability by SEACHEM.<br>Speeds up the process: ~3\u20134 weeks.<br>Method 3: Ammonium Salts + Bacteria<br>Add ammonium salts provided by MEDUSEA.<br>Inoculate with Stability or FRIZZYME bacteria.<br>Fastest option: ~2\u20133 weeks.  <\/li><li>What to Expect During Cycling<br>After adding the ammonia source: <\/li><\/ol><p>You\u2019ll see an ammonia spike, followed by a drop.<br>Then nitrites will rise as bacteria convert ammonia.<br>When both ammonia and nitrites reach zero, all nitrogen is now in the form of nitrates.<br>This usually takes 3\u20134 weeks. At that point, do a 20% water change to reduce excess nitrates.<br>Now your aquarium is ready for jellyfish!     <\/p><p>Important Notes<br>Your biological filter is a living system and must be cared for:<br>Do not pour water with different salinity directly on the bio-balls. This could cause osmotic shock and kill the bacteria.<br>Ensure bacteria have a constant source of waste (food for them).<br>If no animals are in the tank temporarily, add small amounts of food periodically so it decays into ammonia.<br>This way, your aquarium will always be ready for jellyfish or other marine animals.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e848d0 elementor-widget elementor-widget-text-editor\" data-id=\"4e848d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<blockquote><p><strong> Now<\/strong> <em><strong>your tank is truly ready to welcome jellyfish!<\/strong><\/em><\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd34940 elementor-widget elementor-widget-text-editor\" data-id=\"cd34940\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Important Notes<\/strong><br>Your biological filter is a living system and must be cared for:<br>Do not pour water with different salinity directly on the bio-balls. This could cause osmotic shock and kill the bacteria.<br>Ensure bacteria have a constant source of waste (food for them).<br>If no animals are in the tank temporarily, add small amounts of food periodically so it decays into ammonia.<br>This way, your aquarium will always be ready for jellyfish or other marine animals.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>What is the Nitrogen Cycle and Why Is It Necessary for My Aquarium? A jellyfish tank is essentially a marine aquarium that will house animals\u2014our jellyfish. In creating a closed, isolated, and healthy environment, it&#8217;s essential to have a mature biological filter where the nitrogen cycle can take place. Why Is It Needed? All animals [&hellip;]<\/p>\n","protected":false},"author":89,"featured_media":5847,"parent":6644,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"sidebar-2","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"enable","ocean_disable_heading":"enable","ocean_post_title":"","ocean_post_subheading":"Information about the nitrogen cycle in jellyfish tanks","ocean_post_title_style":"background-image","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"off","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":""},"class_list":["post-7076","page","type-page","status-publish","has-post-thumbnail","hentry","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav","circle-sale"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nitrogen Cycle in Jellyfish Aquariums Jellyfish Aquarium - Medusea<\/title>\n<meta name=\"description\" content=\"Nitrogen Cycle in Jellyfish Aquariums. 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