{"product_id":"co2-starter-refill","title":"CO2 Starter Refill","description":"\u003cp\u003e\u003cstrong\u003eRefill pack for the Dennerle Bio CO₂ system — an additional 60 days of CO₂ production for your planted aquarium.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eTracked UK delivery\u003c\/strong\u003e  |  ✅ \u003cstrong\u003eCarefully packed\u003c\/strong\u003e  |  ✅ \u003cstrong\u003eSuitable for Caridina \u0026amp; Neocaridina tanks\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CO₂ Starter Refill is the official replenishment pack for the Dennerle Bio CO₂ system. It allows an additional 60 days of CO₂ production, providing a cost-effective way to continue supplementing the important nutrient that aquatic plants depend on for healthy, sustained growth.\u003c\/p\u003e\n\u003ch4\u003eContents\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCO₂ Powder Mix\u003c\/li\u003e\n\u003cli\u003eCO₂ Activator × 5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUsage Tip\u003c\/h4\u003e\n\u003cp\u003eFor best results, follow the detailed instructions included in the package. Refill the CO₂ Activator every 14 days, or when CO₂ production has dropped to 5 bubbles per minute, to maintain consistent output throughout the cycle.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eIs this refill compatible with the Dennerle CO₂ Starter Kit?\u003c\/strong\u003e\u003cbr\u003eYes. This is the official refill pack for the Dennerle Bio CO₂ system sold in our store. It uses the same bottle and diffuser from your original kit — simply refill and restart the fermentation process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does each refill last?\u003c\/strong\u003e\u003cbr\u003eEach refill provides up to 60 days of CO₂ production at optimal room temperature (20–25°C). Cooler temperatures will slow fermentation and may reduce the duration slightly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should I use the CO₂ Activator?\u003c\/strong\u003e\u003cbr\u003eAdd the CO₂ Activator every 14 days, or when CO₂ production drops to approximately 5 bubbles per minute. This restarts the fermentation process and restores CO₂ output to full capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs bio CO₂ safe for shrimp?\u003c\/strong\u003e\u003cbr\u003eYes, when used correctly. Maintain stable CO₂ levels and ensure adequate surface agitation. Avoid running CO₂ at night when plants are not photosynthesising. Suitable for tanks housing Neocaridina and Caridina shrimp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is this delivered?\u003c\/strong\u003e\u003cbr\u003eAll orders are dispatched from the UK with fully tracked delivery. The refill pack is carefully packed to ensure all components arrive in perfect condition.\u003c\/p\u003e","brand":"Dennerle Plants","offers":[{"title":"Default Title","offer_id":57366831235404,"sku":null,"price":8.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1040\/8001\/5692\/files\/IMG-8057.jpg?v=1776983983","url":"https:\/\/www.aquascapedesign.co.uk\/products\/co2-starter-refill","provider":"AquaScape Design-UK","version":"1.0","type":"link"}