---
product_id: 3625705
title: "Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving"
brand: "instant ocean"
price: "1167 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Instant Ocean"
url: https://www.desertcart.dk/products/3625705-sea-salt-50-gallons-for-marine-aquariums-fast-dissolving
store_origin: DK
region: Denmark
---

# Fast dissolving clarity Trace elements precision Balanced pH formula Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving

**Brand:** instant ocean
**Price:** 1167 kr
**Availability:** ✅ In Stock

## Summary

> 🌟 Bring the ocean home—where science meets simplicity!

## Quick Answers

- **What is this?** Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving by instant ocean
- **How much does it cost?** 1167 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/3625705-sea-salt-50-gallons-for-marine-aquariums-fast-dissolving)

## Best For

- instant ocean enthusiasts

## Why This Product

- Trusted instant ocean brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Experts:** Used by leading aquariums and research facilities for over 40 years—join the elite.
- • **Ocean-Ready in Minutes:** Superior solubility delivers crystal-clear saltwater fast—no waiting, no hassle.
- • **Effortless & Consistent:** No additives needed, won’t separate during shipping, and mixes perfectly every time.
- • **pH Stability Guaranteed:** Maintains ideal pH levels free from nitrates and phosphates for a healthy ecosystem.
- • **Scientifically Perfected:** Formulated with every major, minor, and trace element for thriving marine life.

## Overview

Instant Ocean Sea Salt is a premium marine aquarium salt blend designed for fast dissolving and precise chemical balance. It contains all essential major, minor, and trace elements without nitrates or phosphates, ensuring optimal pH and water quality. Trusted by top aquariums for over four decades, it guarantees consistent, ready-to-use saltwater that supports delicate marine fish and invertebrates with ease and reliability.

## Description

No matter the size of your aquarium, Instant Ocean® sea salts and water care products offer the smartest, easiest way to bring the ocean home. Our scientifically formulated sea salts are used exclusively by many of the leading large-scale aquariums and research facilities across the country. Instant Ocean® Sea Salt is the most carefully formulated, most universally preferred sea salt in the world. It’s the perfect solution for creating the ideal marine environment. Free of nitrate and phosphate, this sea salt formula contains every major, minor and trace element necessary for the health of even the most delicate marine fish and invertebrates. Its superior solubility provides a clear, ready-to-use solution in minutes, quickly achieving and maintaining the ideal pH. The sea salt withstands separation during packaging and shipping. For your convenience, no special additives are required. The consistent formulation is ideal for mixing small or large quantities. This sea salt is sealed to ensure freshness and ease of use. Mix Instant Ocean Sea Salt with ordinary dechlorinated tap water – for small quantities, use ½ cup per gallon of water. Stir vigorously to ensure a good mix. Use immediately or aerate the water until it achieves oxygen/carbon dioxide equilibrium. See product label for complete use directions. Instant Ocean brand offers a full line of products, including sea salt, water treatments, test kits and accessories, to make sure your saltwater aquarium remains vibrant and healthy.

Review: Still Among the Best Synthetic Marine Aquarium Salt after 5 Decades - I used to own a tropical fish shop, a commercial FW fish breeder and now just a retired hobbyist. I only use Instant Ocean salts to hatch and/or grow Brine shrimp now. I have always obtained superior hatches using marine salt mixes over rock salt. In the past, I've cultured some corals but a true measure of a marine salt mix is to have reef fish breed in captivity. I have had pairs of Yellowtail Blue Damsels, Chrysiptera parasema) breed almost every week for months at a time in the early 1980's. In a different setup in the late 1980's and early 1990's I had a 125 gal reef tank. Mostly corals with a few fish. In that tank, my pair of Pygmy Flame Angelfish, Centropyge loricula and trio of Mandarin Dragonets, Synchiropus splendidus, would regularly spawn just after the lights turned off. Of course, I never successfully raised any young because that is too difficult if one is landlocked with no access to tropical plankton to fee the young but some have been successful in tropical Pacific and Caribbean ora.com facilities. Most major public and commercial marine aquariums use Instant Ocean because it has high predictable quality at reasonable prices.
Review: Saltwater salt is recommended - Product is great came as expected and always works good with my saltwater fish tank would recommend; as it is cheaper here than the other two, well known pet stores by like $10

## Features

- FORMULATED SPECIFICALLY FOR MARINE AQUARIUMS: Contains every major, minor and trace element delicate marine fish and invertebrates need.
- DISSOLVES FAST: Superior solubility – provides a clear, ready-to-use solution in minutes.
- IDEAL pH: Quickly achieves and maintains ideal pH – free of nitrate and phosphate.
- CONVENIENT: No special additives are needed – will not separate during packaging and shipping.
- INSTANT OCEAN SEA SALT: The industry standard for quality, consistency and value for more than 40 years.
- Instant ocean 50gal Sea Salt 3pc (Case)
- Instant Ocean Sea Salt contains every necessary major, minor and trace element and has no nitrates and no phosphates
- It was developed through sophisticated biological and chemical testing and every batch is analyzed to assure consistent high quality
- Instant Ocean Sea Salt contains every necessary major, minor, and trace element and has no nitrates and no phosphates
- It was developed through sophisticated biological and chemical testing, and every batch is analyzed to assure consistent high quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000255NKA |
| ASIN  | B000255NKA |
| Age Range Description | all ages |
| Batteries | Product Specific batteries required. |
| Batteries  | Product Specific batteries required. |
| Best Sellers Rank | #3,053 in Pet Supplies ( See Top 100 in Pet Supplies ) #14 in Aquarium Water Treatments |
| Brand Name | Instant Ocean |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (8,320) |
| Date First Available | October 2, 2001 |
| Date First Available  | October 2, 2001 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | See label for details |
| Included Components | Instant Ocean Sea Salt |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 16.5 x 13 x 2.5 inches |
| Item Package Dimensions L x W x H | 17 x 11 x 2.88 inches |
| Item Weight | 6.8 Kilograms |
| Item model number | AQ-SS350-10 |
| Item model number  | AQ-SS350-10 |
| Manufacturer | Instant Ocean |
| Manufacturer  | Instant Ocean |
| Manufacturer recommended age  | 1 month and up |
| Material | cotton |
| Model Name | Sea Salt for Marine Aquariums |
| Number of Items | 1 |
| Product Dimensions  | 16.5 x 13 x 2.5 inches; 14.99 Pounds |
| Size | 50 Gallon |
| Specific Uses for Product | Indoor |
| Target Audience Keyword | fish |
| Warranty Description | See label for details |

## Product Details

- **Brand:** Instant Ocean
- **Item Form:** Granules
- **Item Weight:** 6.8 Kilograms
- **Liquid Volume:** 50 Gallons
- **Manufacturer:** Instant Ocean

## Images

![Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving - Image 1](https://m.media-amazon.com/images/I/81K3I-LMf1L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Why the crazy price hike?**
A: Crazy, I just ordered this 5 gal. bucket ( 160 gal ) and the price almost doubled ? Sooo, I drove a few miles to buy at Petco for about $40.00 w/tax, " Come on Man "

**Q: Can you use this for hermit crabs?**
A: Yes, you can use this to make drinking/soaking water for tropical land hermit crabs.  Just be sure they always have TWO WATER DISHES - one with de-chlorinated fresh water and one with brackish or salt water such as this.  The dishes need to be deep enough for them to fill their shells with water if they want, but must have sponge or some driftwood in them for easy access in and out.  Few people realize they need salt water as well as fresh, kudos to you for inquiring!  If you know which species you have, you should google to find out any specific quirks or requirements.

**Q: Ratio (ingredient weight to water volume) for brackish water condition?**
A: Typically, we recommend starting with 1/4 cup of salt to one gallon of water.  This is half the amount used to make full marine conditions.  You will need a hydrometer or refractometer to test the salinity.  You need 1.010 - 1.015.

**Q: If I have a 39 gallon tank, what size should I buy?**
A: You'll always need to make water for water changes so buying in bulk saves money. if you go to the web site it will tell you the exact amount per gallon

## Customer Reviews

### ⭐⭐⭐⭐⭐ Still Among the Best Synthetic Marine Aquarium Salt after 5 Decades
*by L***W on January 19, 2022*

I used to own a tropical fish shop, a commercial FW fish breeder and now just a retired hobbyist. I only use Instant Ocean salts to hatch and/or grow Brine shrimp now. I have always obtained superior hatches using marine salt mixes over rock salt. In the past, I've cultured some corals but a true measure of a marine salt mix is to have reef fish breed in captivity. I have had pairs of Yellowtail Blue Damsels, Chrysiptera parasema) breed almost every week for months at a time in the early 1980's. In a different setup in the late 1980's and early 1990's I had a 125 gal reef tank. Mostly corals with a few fish. In that tank, my pair of Pygmy Flame Angelfish, Centropyge loricula and trio of Mandarin Dragonets, Synchiropus splendidus, would regularly spawn just after the lights turned off. Of course, I never successfully raised any young because that is too difficult if one is landlocked with no access to tropical plankton to fee the young but some have been successful in tropical Pacific and Caribbean ora.com facilities. Most major public and commercial marine aquariums use Instant Ocean because it has high predictable quality at reasonable prices.

### ⭐⭐⭐⭐⭐ Saltwater salt is recommended
*by D***S on December 15, 2025*

Product is great came as expected and always works good with my saltwater fish tank would recommend; as it is cheaper here than the other two, well known pet stores by like $10

### ⭐⭐⭐⭐⭐ Aquarium salt
*by R***H on January 20, 2026*

Put salt higher calcium and higher magnesium you don't need to go see those with them it's nice not to have to

## Frequently Bought Together

- Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving
- API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-04*