Seachem Vibrant Sea Salt 833L - 23kg

Seachem Vibrant Sea™ Marine Salt 23kg (Makes up to 830L)

If you’re running a marine or reef tank and want consistency, stability, and coral-friendly parameters straight out of the bucket — this salt is seriously hard to beat.

Seachem Vibrant Sea™ is a highly concentrated, premium marine salt mix designed to closely replicate natural seawater, while still being perfectly suited to closed reef aquarium systems. It contains all major, minor, and trace elements, with the added bonus of enhanced potassium levels, which reef tanks absolutely love.

One 23kg bucket makes up to 830L of saltwater, thanks to its anhydrous formulation — meaning there’s no excess moisture, no settling, and no surprises from batch to batch. What you mix today will be the same next month.

Why reef keepers rate Vibrant Sea™

• Makes up to 830L of saltwater from a 23kg bucket

• Anhydrous salt for unmatched consistency and efficiency

• Extremely uniform from batch to batch

• Highly soluble — mix and use the same day

• Ideal for marine and reef aquariums

• Formulated by Seachem, one of the most trusted names in reef chemistry

Reef-ready parameters (at SG 1.026)

• pH: 8.4–8.5

• Alkalinity: 3–4 meq/L

• Calcium: 425–445 mg/L

• Magnesium: 1,250–1,350 mg/L

• Potassium: 500–550 mg/L

• Strontium: 8–10 mg/L

These numbers land right where most reef tanks want to be, making it easier to maintain stable chemistry without constantly chasing parameters.

Perfect for:

• Reef aquariums

• Marine fish systems

• Coral-heavy tanks

• Anyone wanting repeatable, predictable salt mixes

• Reefers who don’t want to adjust chemistry every water change

If you’re sick of salts that mix inconsistently or leave you tweaking calcium and alkalinity every time, Vibrant Sea™ keeps things simple. Mix it, test it, use it — and get back to enjoying your reef.