Description
Seachem Brackish Salt 4Kg — Commercial Mineral Salt Mix To Imitate Natural Brackish Water Habitats of Fish Like Livebearers In Large Public Aquariums
Seachem Brackish Salt 4Kg (SKU: 725180-229) is a commercial-grade mineral salt formulation designed to replicate natural estuarine water conditions in large display tanks and public aquariums. Seachem Brackish Salt is a scientifically formulated blend of salts designed to mimic the natural brackish habitats of fish like livebearers without harming aquatic plants at recommended dosages. Brackish species—such as Archerfish, Scats, Monos, and Figure-8 Puffers—require water with precise ratios of sodium, potassium, calcium, and magnesium to thrive. Brackish Salt delivers these essential electrolytes without elevating GH or pH beyond natural estuarine parameters.
This salt is also suitable for general freshwater aquarium use and, unlike simple sodium chloride products, provides essential nutrients for healthy plant growth without causing leaf or root burn. The 4kg tub provides maximum economy for public facilities, commercial maintenance routes, and large brackish displays. Regular dosing supports osmoregulation, reduces stress, and promotes long-term fish health. By adjusting the dosage, aquarists can replicate specific brackish water environments from different regions, making it a safe and effective alternative to traditional aquarium salts.
Usage & Application
When to Use
- Large Brackish Displays: Conditions water for brackish display tanks over 400 litres.
- Commercial Estuarine Setups: Maintains correct water chemistry in commercial fish holding systems.
- Livebearer Mass Culture: Promotes growth and disease resistance in commercial livebearer facilities.
Dosing & Administration Guide
- Light Brackish (Mollies, Guppies): Add 12 g per 40 L of water (SG ~ 1.002).
- Medium Brackish (Puffers, Archers): Add 24 g per 40 L of water (SG ~ 1.005).
- System Integration: Dissolve the required amount in a makeup water vat prior to adding to the main system.
Product Specifications & Highlights
Key Features
- Matches Estuarine Water Parameters: Recreates natural mangrove habitat water chemistry.
- Commercial 4kg Tub: Delivers maximum value for high-volume setups and public displays.
- Aids Osmoregulation: Helps brackish fish balance body fluids to minimise metabolic stress.
- Phosphate & Nitrate Free: Formulated without compounds that fuel unwanted algae growth.
Product Details
- Brand: Seachem
- SKU: 725180-229
- Barcode (GTIN/UPC): 000116022903
- Product Type: Additives & Supplements > Brackish Salts
- Package Dimensions: 213.07 mm (L) × 213.07 mm (W) ×188.54 mm (H)
- Gross Package Weight: 5,280 g
- Net Weight: 4,000 g (4 kg)
- Target Environment: Large Brackish Water Aquariums & Public Displays
- Treatment Capacity: 4 kg treats up to 13,300 Litres (3,300 US gallons), depending on target specific gravity


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