---
product_id: 266531102
title: "Instant Ocean Sea Salt (50 gal)_MB"
brand: "instant ocean"
price: "$239.48"
currency: USD
in_stock: true
reviews_count: 5
category: "Instant Ocean"
url: https://www.desertcart.us/products/266531102-instant-ocean-sea-salt-50-gal-mb
store_origin: US
region: United States of America
---

# 50 gal volume - ocean-scale capacity Dissolves in minutes - instant clarity Complete trace elements - lab-tested purity Instant Ocean Sea Salt (50 gal)_MB

**Brand:** instant ocean
**Price:** $239.48
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into perfection with Instant Ocean – where science meets your marine sanctuary!

## Quick Answers

- **What is this?** Instant Ocean Sea Salt (50 gal)_MB by instant ocean
- **How much does it cost?** $239.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/266531102-instant-ocean-sea-salt-50-gal-mb)

## 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

- • **Rapid Solubility:** Superior solubility ensures crystal-clear water ready for your aquarium in minutes.
- • **Ideal pH Stability:** Maintains perfect pH balance free from nitrates and phosphates, supporting vibrant ecosystems.
- • **No Additives Needed:** Convenient, stable formula that won’t separate during shipping or storage—ready to use anytime.
- • **Ocean-Scale Capacity:** Bulk 50-gallon supply perfect for serious marine enthusiasts and professionals alike.
- • **Scientifically Formulated:** Contains every major, minor, and trace element essential for delicate marine life health.

## Overview

Instant Ocean Sea Salt is a premium, scientifically engineered marine salt mix designed to replicate natural seawater. Trusted by leading aquariums for over 40 years, it delivers every essential element marine fish and invertebrates need, dissolves quickly for immediate use, and maintains ideal pH without harmful nitrates or phosphates. Packaged for convenience and consistency, it’s the go-to solution for creating and sustaining vibrant saltwater environments.

## 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: It's salt. I use it for my hermit crabs. This box will last me 20 years. It does harden into a solid block but I just chisel pieces off, which is sorta fun.
Review: Tengo cuarenta años manteniendo acuarios marinos de todo tipo, Instant Ocean y la sal que de las salineras de Lorena, Francia obtienen con adición de sintéticos me ha acompañado todo ese tiempo sobre todo cuando hay épocas en donde requieres un precio económico, ya que la acuariofilia marina no es para cualquiera por los costos que en cualquier momento enfrentas, el contar con sal de emergencia es obligatorio y desde siempre he contado con bolsas de reposición sin importar cuando las use, de tener hace unos veinticinco años un tanque de 1,000 GA pase gradual y lentamente a los tanques NANO con el ahorro en recursos, energía y especímenes para ir de la mano con una política de planeta sustentable y ahí estuvo Instant Ocean y seguirá hasta donde mi afición me lo permita.

## 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 |
| Allergen Information | Abalone Free |
| Best Sellers Rank | #38,486 in Pet Supplies ( See Top 100 in Pet Supplies ) #267 in Fish Medication & Health Supplies |
| Brand Name | Instant Ocean |
| Customer Reviews | 4.8 4.8 out of 5 stars (8,031) |
| Global Trade Identification Number | 00051378014007 |
| Included Components | Instant Ocean Sea Salt |
| Item Form | Granules |
| Item Type Name | Aquarium Salt |
| Item Weight | 6.8 Kilograms |
| Liquid Volume | 50 Gallons |
| Manufacturer | Instant Ocean |
| Manufacturer Part Number | AQ-SS350-10 |
| Model Number | AQ-SS350-10 |
| Pet Type | Dog |
| Target Species | Fish |
| UPC | 719279584394 051378014007 |
| Unit Count | 240 Ounce |

## Product Details

- **Brand:** Instant Ocean
- **Item form:** Granules
- **Item weight:** 6.8 Kilograms
- **Liquid volume:** 50 Gallons
- **Manufacturer:** Instant Ocean

## Images

![Instant Ocean Sea Salt (50 gal)_MB - Image 1](https://m.media-amazon.com/images/I/81K3I-LMf1L.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by J***N on 13 August 2025*

It's salt. I use it for my hermit crabs. This box will last me 20 years. It does harden into a solid block but I just chisel pieces off, which is sorta fun.

### ⭐⭐⭐⭐⭐ Review
*by I***A on 2 February 2026*

Tengo cuarenta años manteniendo acuarios marinos de todo tipo, Instant Ocean y la sal que de las salineras de Lorena, Francia obtienen con adición de sintéticos me ha acompañado todo ese tiempo sobre todo cuando hay épocas en donde requieres un precio económico, ya que la acuariofilia marina no es para cualquiera por los costos que en cualquier momento enfrentas, el contar con sal de emergencia es obligatorio y desde siempre he contado con bolsas de reposición sin importar cuando las use, de tener hace unos veinticinco años un tanque de 1,000 GA pase gradual y lentamente a los tanques NANO con el ahorro en recursos, energía y especímenes para ir de la mano con una política de planeta sustentable y ahí estuvo Instant Ocean y seguirá hasta donde mi afición me lo permita.

### ⭐⭐⭐⭐⭐ Review
*by H***D on 21 January 2024*

Llego rapido y a buen precio, gracias!

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-04-26*