---
product_id: 7842743
title: "API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box"
brand: "api"
price: "3427 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.is/products/7842743-api-aquarium-salt-freshwater-aquarium-salt-17-ounce-box
store_origin: IS
region: Iceland
---

# Essential electrolytes boost fish respiration Safe for most freshwater plants when used properly 17 oz pure evaporated sea salt for freshwater tanks API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box

**Brand:** api
**Price:** 3427 kr
**Availability:** ✅ In Stock

## Summary

> 🧂 Elevate your freshwater tank’s health with every sprinkle!

## Quick Answers

- **What is this?** API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box by api
- **How much does it cost?** 3427 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/7842743-api-aquarium-salt-freshwater-aquarium-salt-17-ounce-box)

## Best For

- api enthusiasts

## Why This Product

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

## Key Features

- • **Healing Helper:** Speeds recovery from minor injuries & disease support
- • **Trusted Legacy:** 50+ years of research-backed quality from API, a top aquarium brand
- • **Electrolyte Power-Up:** Boosts fish gill function & oxygen uptake for vibrant health
- • **Stress-Buster Formula:** Reduces fish stress during water changes & new setups
- • **Crystal Clear Solution:** Dissolves instantly without clouding your aquarium water

## Overview

API Aquarium Salt is a 17-ounce box of natural evaporated sea salt designed specifically for freshwater aquariums. It supplies essential electrolytes that improve fish respiration, reduce stress, and aid recovery from minor ailments. Easy to use and safe for most plants, this trusted formula has been a staple in aquarium care for over 50 years, ensuring your fish thrive in a stable, healthy environment.

## Description

A lack of electrolytes in aquarium freshwater may cause serious health problems for freshwater fish. API AQUARIUM SALT supplies electrolytes to improve fish respiration. Made from evaporated sea water and containing natural active ingredients such as a natural fish tonic, API AQUARIUM SALT promotes the overall health of your fish by improving their gill function and reducing stress in a freshwater aquarium. This all-natural salt provides the essential electrolytes fish need for the uptake of oxygen and release of carbon dioxide and ammonia through the gills. API AQUARIUM SALT should only be added to reduce stress during new freshwater aquarium setup and water changes or to promote disease recovery when solving specific fish health issues. Use API AQUARIUM SALT when setting up a new freshwater aquarium, when changing water or treating disease. Make sure to take extra care when using salt with live plants, as some plants may be sensitive. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

Review: Essential for Freshwater Aquariums – Must-Have for Healthy Fish! - I’ve been using the API Aquarium Salt for my freshwater aquarium for quite some time now, and I’m thoroughly impressed with the results. Here’s why I’m giving this product a full 5-star review: 1. Promotes Fish Health: This aquarium salt is great for promoting the overall health of my fish. I’ve noticed an improvement in the vitality and color of my fish, especially when used during water changes or to help treat minor illnesses. The salt provides essential electrolytes that help maintain osmotic balance and promote a healthy immune system for the fish. 2. Works as a Healing Aid: I’ve used this salt to treat minor ailments in my fish, such as stress or injuries. It’s been especially effective in helping fish recover from small cuts or scrapes. I follow the instructions, and it seems to work wonders in speeding up recovery and reducing stress levels in my tank. It’s also helpful when acclimating new fish to the tank environment. 3. Perfect for Freshwater Aquariums: I’ve used other salt products in the past, but this one stands out for its quality and effectiveness specifically for freshwater aquariums. It dissolves easily and doesn’t cloud the water, which is a huge plus. The water quality remains stable, and the salt doesn’t cause any harm to my plants, which is important since I have a planted tank. 4. Safe and Easy to Use: This product is easy to measure and dose according to the size of my aquarium. I appreciate the clear instructions on the box, which helps me ensure I’m using the right amount. I also like that it doesn’t affect the pH of the water in a harmful way. I’ve had no issues with the salt causing unwanted spikes in my tank's water parameters. 5. Great Value for the Price: The 67-ounce box is a great value for the price. It lasts a long time, as you only need to use a small amount for each water change or treatment. Given the quality of the product and how much it improves the health of my fish, this is definitely worth the investment. 6. Packaging May Vary, But the Quality Remains the Same: Although the packaging may vary from time to time, the quality of the salt remains consistent. I’ve used this product several times, and every time, it’s been effective and high quality. Final Thoughts: The API Aquarium Salt is a must-have for any freshwater aquarium enthusiast. Whether you’re looking to improve the health of your fish, treat minor injuries, or simply maintain a stable environment, this salt does it all. I highly recommend it to anyone with a freshwater aquarium! 💯 Highly recommended – a great addition to your aquarium care routine for healthy fish!
Review: API is a good brand. - Qualities seems to be good. It seems to be effective. No bad or odd smells. The only issue I had was the cardboard container that the salt is in was slightly opened in the corner upper edge + just looked like the glue didn't seal properly at manufacturer, there was some salt spilled in the shipping box, but I was able to save it.

## Features

- Contains one (1) API AQUARIUM SALT Freshwater Aquarium Salt 17 Ounce Box

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000255NIC |
| ASIN  | B000255NIC |
| Best Sellers Rank | #2,034 in Pet Supplies ( See Top 100 in Pet Supplies ) #132 in Aquarium Water Treatments |
| Brand Name | API |
| Color | multi natural |
| Country of Origin | United States |
| Customer Reviews | 4.7 4.7 out of 5 stars (23,367) |
| Date First Available | June 20, 2004 |
| Date First Available  | June 20, 2004 |
| Department | unisex-adult |
| Department  | unisex-adult |
| Directions | Use when setting up a freshwater aquarium or fish bowl, when changing water, and when treating fish disease. Add 1 rounded tablespoon every 5 U.S. gallons (20 L), or ½ rounded teaspoon for every U.S. gallon (4 L) of aquarium water. Note: Aquarium Salt does not evaporate and is not filtered out, so it should only be added with each water change. Care should be taken when using salt with live plants… |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 2.75 x 2.75 x 5.38 inches |
| Item Package Dimensions L x W x H | 5.67 x 2.91 x 2.87 inches |
| Item Weight | 526.16 Grams |
| Item model number | 106 |
| Item model number  | 106 |
| Manufacturer | Mars Fishcare |
| Manufacturer  | Mars Fishcare |
| Material | Plastic |
| Model Name | AQUARIUM SALT - PINT (17 OZ) |
| Number of Items | 1 |
| Product Dimensions  | 2.75 x 2.75 x 5.38 inches; 1.16 Pounds |
| Size | 17 Oz |
| Style | Aquarium Treatment |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** API
- **Item Form:** Liquid
- **Item Weight:** 526.16 Grams
- **Manufacturer:** Mars Fishcare
- **Pet Type:** Fish

## Images

![API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box - Image 1](https://m.media-amazon.com/images/I/5188uXcNNzL.jpg)

## Questions & Answers

**Q: How much dose is safe for snails?**
A: We would not recommend to use salt with snails.

**Q: Is 33oz sufficient for a 30 gallon tank with 1 betta (some discoloration and eye issue) and 3 snails? 64oz is 4 pounds and seems like a bit much.**
A: Its more than sufficient! It will last you a long time.
33 oz is enough to treat about 220 gallons! Thats about enough for 21 water changes (if you do 10 gallons each time). 
 
1 tablespoon for every 5 gallons = 6 tablespoons or 3/8 of a cup. 

I have a 29 gallon tank and I do water changes biweekly (mollys poop a lot).  I recommend this as some water filtering systems and treatments remove vital electrolytes. Think of it as Gatorade or alkaline mineral water for your fish. Its also good to have for when they are a bit under the weather.

**Q: How much do you put in to make a fresh water 3 gallon fish tank a brackish fish tank for my dwarf pufferfish**
A: I put a tablespoon per 10 gallons, but mine aren't  brackish tanks. Have had a Green Spotted Puffer for 5-6 years and it does fine in freshwater. Don't know if other kinds can be freshwater.

**Q: It says to use for up to 10 days only, right? What happens after that? Same old maintenance, and the fins will continue to heal? Thank you in advance.**
A: It is not listed in the instructions to only use for 10 days.  We would recommend to dose the aquarium and the salt will continue to be in there.  The only time you would re-add salt is when water is removed and added back in.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Essential for Freshwater Aquariums – Must-Have for Healthy Fish!
*by T***O on February 17, 2025*

I’ve been using the API Aquarium Salt for my freshwater aquarium for quite some time now, and I’m thoroughly impressed with the results. Here’s why I’m giving this product a full 5-star review: 1. Promotes Fish Health: This aquarium salt is great for promoting the overall health of my fish. I’ve noticed an improvement in the vitality and color of my fish, especially when used during water changes or to help treat minor illnesses. The salt provides essential electrolytes that help maintain osmotic balance and promote a healthy immune system for the fish. 2. Works as a Healing Aid: I’ve used this salt to treat minor ailments in my fish, such as stress or injuries. It’s been especially effective in helping fish recover from small cuts or scrapes. I follow the instructions, and it seems to work wonders in speeding up recovery and reducing stress levels in my tank. It’s also helpful when acclimating new fish to the tank environment. 3. Perfect for Freshwater Aquariums: I’ve used other salt products in the past, but this one stands out for its quality and effectiveness specifically for freshwater aquariums. It dissolves easily and doesn’t cloud the water, which is a huge plus. The water quality remains stable, and the salt doesn’t cause any harm to my plants, which is important since I have a planted tank. 4. Safe and Easy to Use: This product is easy to measure and dose according to the size of my aquarium. I appreciate the clear instructions on the box, which helps me ensure I’m using the right amount. I also like that it doesn’t affect the pH of the water in a harmful way. I’ve had no issues with the salt causing unwanted spikes in my tank's water parameters. 5. Great Value for the Price: The 67-ounce box is a great value for the price. It lasts a long time, as you only need to use a small amount for each water change or treatment. Given the quality of the product and how much it improves the health of my fish, this is definitely worth the investment. 6. Packaging May Vary, But the Quality Remains the Same: Although the packaging may vary from time to time, the quality of the salt remains consistent. I’ve used this product several times, and every time, it’s been effective and high quality. Final Thoughts: The API Aquarium Salt is a must-have for any freshwater aquarium enthusiast. Whether you’re looking to improve the health of your fish, treat minor injuries, or simply maintain a stable environment, this salt does it all. I highly recommend it to anyone with a freshwater aquarium! 💯 Highly recommended – a great addition to your aquarium care routine for healthy fish!

### ⭐⭐⭐⭐⭐ API is a good brand.
*by N***K on January 6, 2026*

Qualities seems to be good. It seems to be effective. No bad or odd smells. The only issue I had was the cardboard container that the salt is in was slightly opened in the corner upper edge + just looked like the glue didn't seal properly at manufacturer, there was some salt spilled in the shipping box, but I was able to save it.

### ⭐⭐⭐⭐⭐ Works amazing great price
*by K***R on January 8, 2026*

Works amazing helped my tank and my black moor goldfish had red irritation in his eye. It cleared up instantly after I put it in. My water is crystal clear.

## Frequently Bought Together

- API AQUARIUM SALT Freshwater Aquarium Salt 17-Ounce Box
- API LIQUID SUPER ICK CURE Fish remedy, Freshwater and Saltwater Fish Medication 4 fl oz(Pack of 1), White
- API MELAFIX Freshwater Fish Bacterial Infection Remedy 4-Ounce Bottle

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-26*