--- product_id: 263417474 title: "Red Sea Kh/Alkalinity (Foundation B) - 500ml" brand: "red sea" price: "€ 41.92" currency: EUR in_stock: true reviews_count: 5 category: "Red Sea" url: https://www.desertcart.fr/products/263417474-red-sea-kh-alkalinity-foundation-b-500ml store_origin: FR region: France --- # 500 ml 8x20x8 cm 453.59 g Red Sea Kh/Alkalinity (Foundation B) - 500ml **Brand:** red sea **Price:** € 41.92 **Availability:** ✅ In Stock ## Summary > 🌊 Dive into Coral Bliss! ## Quick Answers - **What is this?** Red Sea Kh/Alkalinity (Foundation B) - 500ml by red sea - **How much does it cost?** € 41.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/263417474-red-sea-kh-alkalinity-foundation-b-500ml) ## Best For - red sea enthusiasts ## Why This Product - Trusted red sea brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Dosing:** Automatic dosing for hassle-free aquarium care. - • **BPA-Free Assurance:** Safe for all life stages, worry-free for your aquatic friends. - • **Coral Growth Catalyst:** Unlock vibrant coral health with daily dosing! - • **Cost-Effective Solution:** Maximize your aquarium's potential without breaking the bank. - • **Precision Measuring Cup:** Includes a measuring cup for accurate dosing every time. ## Overview The Red Sea Kh/Alkalinity (Foundation B) is a premium liquid supplement designed to support the foundational health of coral skeletons in your aquarium. With a user-friendly automatic dosing system and a precise measuring cup included, this 500ml solution ensures balanced proportions for optimal coral growth. Plus, it's BPA-free, making it safe for all aquatic life stages. ## Description KH/ALKALINITY FOUNDATION® B Carbonate & buffer complex for balanced formation of Coral Skeleton KH Calcium, magnesium, strontium and carbonate are the basic foundation elements of coral skeletons. All of these elements need to be available in balanced proportions for coral health and growth. Red Sea’s KH/ALKALINITY is a complex of carbonate and other buffers present in seawater that maintain proper alkalinity and pH, and is part of Red Sea’s complete Reef Care program. Concentration: Liquid supplement: 1ml will raise the Alk level of 100 liters (25 gal) by 0.036 meq/l (0.1dKH) Powder supplement: 1g will raise the Alk level of 100 liters (25 gal) 0.12 meq/l (0.33dKH) 1 kg will make 10L of stock solution. Review: Increase the KH in my tank Review: Works good as a 2-in-1 alkalinity supplement for reef tanks. I didn't want the hassle of buying separate carbonate and bicarbonate products and then premixing them. This liquid product is easy to use and disperses quickly in the tank. I originally bought the Foundation A+B+C pack, but my reef depletes my alk much more quickly than my Mg and Ca so I bought the big Alk bottle this time. ## Features - Add this liquid supplement to your aquarium daily to form the basic foundation of coral skeletons - Easy to use with automatic dosing - Balanced proportions for coral health and growth - Cost Effective - Include a measuring cup for easy dosing ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004E2DW78 | | Allergen Information | BPA-Free | | Best Sellers Rank | #12,411 in Pet Supplies ( See Top 100 in Pet Supplies ) #63 in Fish Medication & Health Supplies | | Brand Name | Red Sea | | Country of Publication | USA | | Customer Reviews | 4.7 4.7 out of 5 stars (112) | | Global Trade Identification Number | 00730773220236 | | Item Form | Liquid | | Item Type Name | Red Sea KH/ALKALINITY (FOUNDATION B) - 500ML | | Item Weight | 1 Pounds | | Liquid Volume | 500 Milliliters | | Manufacturer | TopDawg Pet Supply | | Manufacturer Part Number | 306037 | | Model Number | 23173 | | Pet Type | Fish | | Target Species | Fish | | UPC | 730773220236 | | Unit Count | 1 Count | ## Product Details - **Brand:** Red Sea - **Item form:** Liquid - **Item weight:** 454 g - **Liquid volume:** 500 Milliliters - **Manufacturer:** TopDawg Pet Supply ## Images ![Red Sea Kh/Alkalinity (Foundation B) - 500ml - Image 1](https://m.media-amazon.com/images/I/81tqlVcRItL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by P***R on 24 May 2024* Increase the KH in my tank ### ⭐⭐⭐⭐⭐ Review *by A***. on 17 April 2018* Works good as a 2-in-1 alkalinity supplement for reef tanks. I didn't want the hassle of buying separate carbonate and bicarbonate products and then premixing them. This liquid product is easy to use and disperses quickly in the tank. I originally bought the Foundation A+B+C pack, but my reef depletes my alk much more quickly than my Mg and Ca so I bought the big Alk bottle this time. ### ⭐⭐⭐⭐⭐ Review *by P***T on 2 November 2014* Two months ago, my local store aquarium expert had recommended that stop dosing with various Kent products and instead does my reef aquarium with Red Sea Foundation A and Foundation B. His recommendation was that I alternate the dosing daily (Foundation A one day; Foundation B the next). After doing this for about 1 month, the aquarium expert asked me how things were going and way I thought of the Red Sea foundation products. 30 days in, I was still a bit skeptical about this dosing regimen. Because of the alternative day dosing schedule, I was doing a lot of water testing - primarily measuring KH and Calcium every other day and adjusting my dosage based on the testing. ( you still complete your standard water tests as well ) After 30 days, I wasn't seeing much of a difference in my reef tank. Two months into dosing my tank with Red Sea Foundation A & B, my corals have literally exploded in growth and energy. You end up adjusting and managing KH and Calcium with your dosing of Red Sea Foundation A & B. Both counteract each other, so high KH would reduce the Calcium and vice versa. Once you get the balance, you dose to maintaini it. I have to say that my corals are doing excellent. Each and every one, both LPS and SPS are doing great. Prior to this, I was dosing a number of Kent products. Using Red Sea Foundation A&B, things are much more simplified. You don't have to alternate doses daily as I do, but this works for me. I'd recommend Foundation A & B dosing. With a little patience, you will be happy with the end results. ## Frequently Bought Together - Red Sea Reef Foundation B Alkalinity (KH) Supplement, 500ml - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums - Red Sea Reef Foundation A (Ca/Sr) Supplement, 500ml - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/263417474-red-sea-kh-alkalinity-foundation-b-500ml](https://www.desertcart.fr/products/263417474-red-sea-kh-alkalinity-foundation-b-500ml) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-04-22*