{"id":4165,"date":"2026-09-20T20:13:26","date_gmt":"2026-09-20T17:13:26","guid":{"rendered":"https:\/\/bluefinpets.com\/product\/seachem-reef-builder\/"},"modified":"2026-09-20T22:45:54","modified_gmt":"2026-09-20T19:45:54","slug":"seachem-reef-builder","status":"publish","type":"product","link":"https:\/\/bluefinpets.com\/ar\/product\/seachem-reef-builder\/","title":{"rendered":"Seachem Reef Builder"},"content":{"rendered":"<h2>Seachem Reef Builder<\/h2>\n<p>Reef Builder\u2122 raises carbonate alkalinity (KH) without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Used as directed, Reef Builder\u2122 will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity. Reef Builder\u2122 and Reef Buffer\u2122 may be used together. Use Reef Builder\u2122 to raise carbonate alkalinity without affecting pH. Use Reef Buffer\u2122 to raise carbonate alkalinity and pH. Reef alkalinity should be maintained at 3\u20135 meq\/L (8\u201314 dKH). Alkalinity should not be allowed to fall below 2 meq\/L.<\/p>\n<h2>Key Benefits<\/h2>\n<ul>\n<li>Raises carbonate alkalinity (KH) with minimal impact on pH<\/li>\n<li>A blend of carbonate sources that will not lower pH as competing bicarbonate only products can<\/li>\n<li>Will not deplete calcium, magnesium, or strontium<\/li>\n<li>Directions<\/li>\n<\/ul>\n<h2>Directions and Care<\/h2>\n<p>Use 3 g (1\/2 level teaspoon) per 150 L (40 US gallons) twice a week. Dissolve in at least 250 mL (1 cup) of freshwater. Check alkalinity every 2 weeks and adjust amount or frequency accordingly. For precise dosing, use the Seachem Digital Spoon Scale.<\/p>\n<p>Check alkalinity (use MultiTest\u2122 Marine pH &amp; Alkalinity to test alkalinity levels), then follow addition regimen above until alkalinity is adjusted to 3-6 meq\/L (8-17 dKH). Each 3 g\/150 L will raise alkalinity by about 0.25 meq\/L. Quantity or frequency can be adjusted, but do not exceed 12 g\/150 L per day. Thereafter, use as required to maintain alkalinity.<\/p>\n<p>After determining the alkalinity consumption rate, set up a continuous drip system. Use the following formula (or skip the math and use our Dosage Calculator) to determine how much to add to your top\u2013off water: m=0.08va (m=grams to add to top off water, v=volume of tank in liters, a=amount to raise alkalinity in meq\/L). For example, if you want to raise your alkalinity by 1 meq\/L in a 200 liter tank, then you would add 0.08x200x1=16 g into the top\u2013off water. [For reference: 1 gallon=3.8 liters, 6 g=1 teaspoon].<\/p>\n<h2>Storage and Safety<\/h2>\n<p>Keep the container tightly closed in a cool, dry place. Keep out of reach of children and use only as directed on the product label.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reef Builder\u2122 raises carbonate alkalinity (KH) without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Used as directed, Reef Builder\u2122 will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increas<\/p>","protected":false},"featured_media":4164,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"slim_seo":{"title":"Seachem Reef Builder - Bluefin Pets","description":"Reef Builder\u2122 raises carbonate alkalinity (KH) without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Used as"}},"product_brand":[349],"product_cat":[153],"product_tag":[],"class_list":["post-4165","product","type-product","status-publish","has-post-thumbnail","product_brand-seachem","product_cat-marine-aquarium-supplements","first","instock","shipping-taxable","purchasable","product-type-variable","rey-swatches","","rey-swatches--stretch-labels"],"acf":[],"_links":{"self":[{"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/product\/4165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/comments?post=4165"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/media\/4164"}],"wp:attachment":[{"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/media?parent=4165"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/product_brand?post=4165"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/product_cat?post=4165"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bluefinpets.com\/ar\/wp-json\/wp\/v2\/product_tag?post=4165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}