{"product_id":"brightwell-aquatics-reef-code-a-calcium-supplement-500-ml-for-reef-aquariums","title":"Brightwell Aquatics Reef Code A Calcium Supplement, 500 mL for Reef Aquariums","description":"\u003cp\u003eBrightwell Aquatics Reef Code A is a 500 mL calcium supplement for aquariums, designed as the calcium half of a two-part calcium-and-alkalinity dosing system used with equal parts Reef Code B.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePaired in equal parts with Reef Code B — provides a two-part dosing approach designed around natural seawater ratios.\u003c\/li\u003e\n\u003cli\u003eContains calcium, magnesium, strontium, potassium, and minor and trace minerals — supplies a range of minerals for reef aquarium water.\u003c\/li\u003e\n\u003cli\u003eDesigned for corals, clams, and calcareous algae — supports reef-building organisms while simplifying calcium and alkalinity maintenance.\u003c\/li\u003e\n\u003cli\u003eContains no phosphate, silicate, or organic material — avoids adding these substances through the supplement.\u003c\/li\u003e\n\u003cli\u003eFormulated by a marine scientist and made in the USA — brings its stated formulation origin and manufacturing origin into focus.\u003c\/li\u003e\n\u003cli\u003eBrightwell Aquatics describes the formula as stronger than most competing products — a stated differentiator for reef keepers comparing calcium supplements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaintaining calcium and alkalinity is part of caring for reef aquariums with organisms that build calcium-based structures. Reef Code A is intended for new aquarium setups as well as established tanks, and the brand also identifies its aquarium water treatments for freshwater and marine environments. For reef use, pair A with Reef Code B as a two-part system.\u003c\/p\u003e\n\u003ch3\u003eWhich reef organisms is Reef Code A made to support?\u003c\/h3\u003e\n\u003cp\u003eBrightwell Aquatics Reef Code A is formulated to support reef-building organisms, including corals, clams, and calcareous algae. Its calcium supplement role is intended to help simplify the ongoing maintenance of aquarium calcium and alkalinity, rather than serving as a food for these organisms.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntended for reef-building organisms that use calcium.\u003c\/li\u003e\n\u003cli\u003eMade for aquarium water treatment and calcium maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow does the Reef Code A and B method work?\u003c\/h3\u003e\n\u003cp\u003eBrightwell Aquatics Reef Code A supplies the calcium component, while Reef Code B provides carbonates and other anions; use equal parts of each. Together, the two-part method is designed to maintain ionic balance in proportions that reflect natural seawater. Reef Code A also contains magnesium, strontium, potassium, and minor and trace minerals. The formula contains no phosphate, silicate, or organic material.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReef Code B is the companion part for the two-part method.\u003c\/li\u003e\n\u003cli\u003eEqual-part use is the stated approach for matching the natural seawater ratio.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow much should I dose, and how do I prepare it?\u003c\/h3\u003e\n\u003cp\u003eBrightwell Aquatics Reef Code A directions call for 5 mL per 25 gallons (94.6 L) of water every other day, or as needed to sustain alkalinity within 412 to 450 ppm. Shake the product well and test calcium concentration before dosing. When used as directed, 250 mL treats up to 1,250 gallons (4,732.5 L).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBegin by testing calcium concentration before adding the supplement.\u003c\/li\u003e\n\u003cli\u003eUse the stated alkalinity range as the dosing target.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCan Reef Code A be used in freshwater and marine aquariums?\u003c\/h3\u003e\n\u003cp\u003eBrightwell Aquatics Reef Code A is identified for use in both freshwater and marine aquarium environments, while its calcium-and-alkalinity two-part method is presented for reef aquarium care. The product is intended for use with Reef Code B as part of that method. It is suitable for setting up a new tank or maintaining an established aquarium.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade for aquarium water treatment in freshwater and marine settings.\u003c\/li\u003e\n\u003cli\u003eReef dosing uses Reef Code A together with Reef Code B.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReef keepers maintaining calcium and alkalinity for corals, clams, or calcareous algae will get the most direct use from Reef Code A. It fits aquarium owners looking for a two-part dosing routine with a dedicated calcium component.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I dose Brightwell Aquatics Reef Code A?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Shake Brightwell Aquatics Reef Code A well, test calcium first, then dose 5 mL per 25 gallons (94.6 L) every other day or as needed to maintain alkalinity at 412 to 450 ppm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can Brightwell Aquatics Reef Code A be used in freshwater aquariums?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Brightwell Aquatics Reef Code A is identified for freshwater and marine aquarium use; its reef dosing method pairs it with equal parts Reef Code B.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Brightwell Aquatics","offers":[{"title":"Default Title","offer_id":67856063299975,"sku":"B00BUFTMZ8","price":29.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1108\/7619\/7255\/files\/brightwell-aquatics-reef-code-a-calcium-bottle-front.jpg?v=1793459333","url":"https:\/\/ardentpets.co.uk\/products\/brightwell-aquatics-reef-code-a-calcium-supplement-500-ml-for-reef-aquariums","provider":"ArdentPets","version":"1.0","type":"link"}