Red Sea Reef Care Kh/alkalinity Foundation B 1kg

Description

Red Sea Reef Care KH/Alkalinity Foundation B 1kg — Carbonate buffer powder that makes 10 litres of stock

A kilogram of buffer powder makes ten litres of dosing solution, which is why it is the alkalinity choice for anyone running a pump. Red Sea Reef Care Kh/alkalinity Foundation B 1kg (SKU: RED303) is the powdered KH/Alkalinity Foundation B, Red Sea’s complex of carbonate and the other buffers present in seawater, used to maintain alkalinity and pH stability as corals consume carbonate. Red Sea states that 1 g raises the alkalinity of 100 L by 0.33 dKH (0.12 meq/L), and that 1 kg dissolved in 10 L of RO water gives a stock solution dosed at 1 mL per 100 L for 0.034 dKH.

The dosing rules are those of the whole Foundation set: alkalinity held at the recipe level for the tank type, 11.5 dKH for a mixed reef, 8.0 for SPS-dominant, 12.6 for a frag tank and 7.0 for an ultra-low-nutrient reef; the daily dose found from a four-day uptake test; and the change in any one day held to 1.4 dKH (0.5 meq/L). Red Sea adds the buffer second, after magnesium and before calcium, into the sump, and warns against carbonate-only test kits. The tub raises 300 L by 110 dKH in total, about seven months on a tank losing 0.5 dKH a day.

Usage & Application

When to Use

• Dosing-pump stock: 1 kg in 10 L of RO water for the alkalinity channel.
• Mid-size and large reefs: Where alkalinity is the fastest-moving and most-dosed element.
• Precise corrections: Grams weighed to lift a low reading to the recipe level.
• Program users: The B powder with Calcium+ A (RED302) and Magnesium C (RED304).

Dosing & Administration Guide

• Weigh: 1 g per 100 L adds 0.33 dKH; a 300 L tank needing 0.5 dKH takes about 4.5 g.
• Dissolve or make stock: In RO water before adding, or 1 kg per 10 L for a doser.
• Dose second: After magnesium, before calcium, ten minutes apart, into the sump; under 1.4 dKH a day.
• Test total alkalinity weekly: Not carbonates only; adjust the B line on its own.

Product Specifications & Highlights

Key Features

• Carbonate and seawater buffers: For alkalinity and pH stability.
• 0.33 dKH per gram: Per 100 L, as Red Sea states.
• Stock solution: 1 kg makes 10 L, dosed at 0.034 dKH per mL per 100 L.
• Capped daily change: 1.4 dKH (0.5 meq/L).
• Foundation B of three: Matched powders for calcium and magnesium.

Product Details

• Brand: Red Sea
• SKU: RED303
• Barcode (GTIN/EAN): 7290100772188
• Product Type: Additives & Supplements > Alkalinity (KH) Supplement
• Net Weight: 1 kg powder
• Composition: Carbonate and other seawater buffers
• Effect: 1 g per 100 L raises alkalinity by 0.33 dKH (0.12 meq/L)
• Stock Solution: 1 kg in 10 L RO water; 1 mL per 100 L then adds 0.034 dKH
• Program Range: 7.0–12.6 dKH by aquarium type
• Maximum Daily Rise: 1.4 dKH (0.5 meq/L)
• Liquid Sizes: 500 mL (RED281), 1 L (RED281b), 5 L (RED281a)
• Target Environment: Marine reef aquariums on the Reef Care Program