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Instant Ocean Sea Salt for Marine Aquariums, Nitrate & Phosphate-Free, 200-Gallon

4.8 4.8 out of 5 stars 7,819 ratings

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200 Gallon
Sea Salt
Brand Instant Ocean
Liquid Volume 200 Gallons
Item Weight 62 Pounds
Item Form Stick
Target Species Fish

About this item

  • Number 1 choice of hobbyists, public aquariums and scientific research facilities
  • Fast dissolving
  • Nitrate and phosphate-free
  • Contains all important major and minor trace elements necessary for a healthy aquarium
  • Makes 200 Gallons

Customer ratings by feature

Easy to use
4.7 4.7
Value for money
4.6 4.6
Accuracy
4.5 4.5

From the manufacturer

About Us

Instant Ocean is the most trusted brand of marine salt, care and other products for aquarists who wish to re-create a thriving ocean habitat in their own home. Instant Ocean Sea Salt is one of the most carefully formulated and universally preferred sea salts in the world. It's why our Sea Salt is used exclusively by many of the large-scale aquariums and research facilities across the country.

No matter what size your aquarium, science-based Instant Ocean products offer the smartest, easiest way to bring the ocean home.

Looking for specific info?

Product Description

No matter what size your aquarium, Instant Ocean sea salts and water care products offer the smartest, easiest way to bring to ocean home. Our scientifically formulated sea salts are used exclusively by many of leading large-scale aquariums and research facilities across the country. Instant Ocean Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for quality, consistency, and value for more than 50 years. Mix Instant Ocean with ordinary dechlorinated tap or purified water. NOTE: To prepare small quantities, use 1/2 cup of Instant Ocean per each U.S. gallon of water. Mix as directed. Stir vigorously to ensure a good mix. Although the Instant Ocean solution may be used immediately, we suggest aerating the water until it achieves oxygen/carbon dioxide equilibrium. Measure specific gravity with an Instant Ocean Hydrometer. Adjust salt level accordingly. If specific gravity is too low, add more Instant Ocean. lf too high, add more dechlorinated water. Change 20% of aquarium water every two weeks to maintain optimum water quality. NEVER mix salt in an aquarium containing animals. Recommended Specific Gravity Range - 1.020 - 1.024 at 77°F.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 11.5 x 14.75 x 10.5 inches; 62 Pounds
  • Manufacturer recommended age ‏ : ‎ 1 month and up
  • Item model number ‏ : ‎ SS1-200
  • Department ‏ : ‎ Unisex-Adult
  • Date First Available ‏ : ‎ June 9, 2004
  • Manufacturer ‏ : ‎ Instant Ocean
  • ASIN ‏ : ‎ B003SNKMVI
  • Customer Reviews:
    4.8 4.8 out of 5 stars 7,819 ratings

Important information

Directions

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Instant Ocean Sea Salt for Marine Aquariums, Nitrate & Phosphate-Free, 200-Gallon
Instant Ocean Sea Salt for Marine Aquariums, Nitrate & Phosphate-Free, 200-Gallon
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Details
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Price$12.99-18% $59.99
List:$73.59
-29% $9.89
List:$13.90
$11.98-12% $24.40
Typical:$27.65
Delivery
Get it as soon as Tuesday, Apr 2
Get it Apr 4 - 5
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to use
4.7
5.0
4.7
4.7
4.7
4.8
Value for money
4.6
5.0
4.6
4.7
4.7
4.6
Accuracy
4.5
5.0
4.5
4.8
4.6
4.4
Sold By
Amazon.com
Petco
Amazon.com
Amazon.com
Amazon.com
target species
Fish
Fish
Coral
Fish
Fish
Coral
liquid volume
200 gallons
1 gallons
160 gallons
250 milliliters
0 gallons
50 gallons
form
Stick
Powder
Stick
Stick
Granules
Stick
weight
62 pounds
4.6 pounds
46 pounds
0.29 kilograms
4 pounds
0.01 ounces

Customer reviews

4.8 out of 5 stars
4.8 out of 5
7,819 global ratings

Customers say

Customers like the quality, value, and ease of mixing of the aquarium pond water treatment. For example, they mention it works great, dissolves very easily, and mixes quickly. Some are happy with ease of use, and compatibility. That said, some complain about the bag being ripped or damaged. Opinions are mixed on the cloudiness.

AI-generated from the text of customer reviews

482 customers mention444 positive38 negative

Customers are satisfied with the quality of the aquarium pond water treatment. They mention that it works great, has the correct salinity, and provides the best results when doing water changes. Some say that the product is great for use in hermit crab saltwater dishes and has a proven track record. Overall, most are happy with their purchase and recommend it to others.

"This is great marine salt. It comes packaged well so it doesn't bust open." Read more

"Works great! Clumps and hardens very easily when moistened, very important to keep it in a dry place and avoid liquid but otherwise good!" Read more

"Excellent in every way. Negatives: pricey. Instructions are not very good. Experienced aquarists, however, will have no problems using it...." Read more

"...commercial marine aquariums use Instant Ocean because it has high predictable quality at reasonable prices." Read more

320 customers mention309 positive11 negative

Customers appreciate the value of the salt for aquarium pond water treatment. They mention that it is a great salt for the price and is as described at a very reasonable cost.

"Product arrived quickly and is as described at a very reasonable codt" Read more

"I love it been using for a while and the price is very good for the amount you get." Read more

"...use Instant Ocean because it has high predictable quality at reasonable prices." Read more

"...The pricing is always competitive compared to other name brands but the salt to me is always the same no matter which brand you go with...." Read more

70 customers mention60 positive10 negative

Customers like the dissolves. For example, they mention it dissolves very easily, rapidly, and provides all the minerals they need in their aquarium or pond water. Some say that it dissolve easily in 76-degree Fahrenheit water.

"...It is ground finely so it dissolves easy which is great. So far, none of the pets disagree with it so take it for what it's worth...." Read more

"...This is my go to brand as it dissolves quickly and my water is always crystal clear after my water changes. Iv been using it for at least 10 years...." Read more

"This is a great salt. It dissolves quickly and gives my tank the right ph. My clown loves it...." Read more

"...Dissolves very easily and crystal clear in my 25 gallon marine tank...." Read more

68 customers mention61 positive7 negative

Customers find the aquarium pond water treatment easy to mix. They say it dissolves fast, and does not leave any chunks. Customers also say the mixing instructions are pretty accurate. They mention that the salt mixes up nice and clear after a couple hours.

"...It mixes very quickly, no CO2 injection required just an airstone or a filter agitating the water...." Read more

"...It's economical and mixes well. Lots of great reef tanks use IO and it has a proven track record." Read more

"This stuff mixes so easily. And devolves fast. I recomend it for beginners and experts. The salinity levels are easy and accurate...." Read more

"...I have never had an issue with this salt - mixes quick (15 minutes using a powerhead) and clear." Read more

60 customers mention51 positive9 negative

Customers find the aquarium pond water treatment easy to use. They say the instructions are clear and the product is convenient to use and dissolve. Customers also mention that it's a great salt and ready for use.

"Instructions are easy to read, great value for your $$, and easy to store...." Read more

"Easy to use and dissolve quickly. Recommend for 24 hours." Read more

"...the same bucket for over 5 years and the salt is always dry and ready for use...." Read more

"I have used instant ocean salt for years. It is always easy to use and consistant." Read more

19 customers mention15 positive4 negative

Customers like the compatibility of the aquarium pond water treatment. They say it's great for fish, corals, jellyfish, and hatching brine shrimp. It's also great for hermit crabs and bubbler pools. Some customers also mention that it works for a tank without hard corals and a reef tank.

"Great for hatching brine shrimp" Read more

"Wonderful for jellyfish! Don’t waste money on mini packets of special Marine salt!..." Read more

"Easy to use and highly recommended among hermit crab owners. Seems to be working well for us so far!..." Read more

"...Excellent value for money. Not at all suitable for reef systems in long term." Read more

14 customers mention5 positive9 negative

Customers are mixed about the cloudiness of the aquarium pond water treatment. Some mention that it dissolves quickly and makes crystal clear water, while others say that it does not dissolve well and clouds their tank.

"...My first attempt I put a lot in with 32 gallon of water, it was really cloudy...." Read more

"Makes crystal clear water in my 55 gallon water change barrels. Can't say that about any other salt I've tried and I've tried too many...." Read more

"Mixed with 0 tdi RODI water Its a bit cloudy when first mixed but after its mixed its solid and theres no extra nutrients that come in other salt..." Read more

"...and each time I had issues with it having ammonia in it, and being very cloudy. Not to mention the calcium and magnesium Not being correct...." Read more

32 customers mention0 positive32 negative

Customers are dissatisfied with the bag. They mention that it was ripped, damaged, and open. Some say that the top was rippable and the box was smashed. Overall, customers are disappointed with the quality and quantity of the product.

"...I did not give five stars is the box was already open and the top was ripped open with part of the top not even all there...." Read more

"Great product but packaging wasn’t as good 1 bag broke open in box. Prob due to carrier" Read more

"...I didn’t notice it until I pulled the second bag out and the bottom bag had exploded somehow..." Read more

"...Delivered via FedEx. Unfortunately, the box was completely destroyed and some bags of salt were punctured during shipping...." Read more

Perfect for my marine tank
5 Stars
Perfect for my marine tank
You can't go wrong with instant ocean sea salt. Dissolves very easily and crystal clear in my 25 gallon marine tank. My clownfish, snails, crabs, sunburst anenome, oyster and mussels all doing well with this mixture.The price is affordable and you can make 50 gallons which will last me for few months with weekly water change because I just started this tank just over 2 months ago.With 1/2 cup of salt per gallon of my tap water dechlorinated with a filter tube it creates the specific gravity or salinity at 1.022 +- 0.005.
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Top reviews from the United States

Reviewed in the United States on January 11, 2024
Size: 50 GallonPattern Name: Sea SaltVerified Purchase
One person found this helpful
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Reviewed in the United States on March 1, 2024
Size: 10 GallonPattern Name: Sea SaltVerified Purchase
Reviewed in the United States on February 21, 2024
Size: 50 GallonPattern Name: Sea SaltVerified Purchase
Reviewed in the United States on January 29, 2024
Size: 10 GallonPattern Name: Sea SaltVerified Purchase
Reviewed in the United States on December 17, 2022
Size: 200 GallonPattern Name: Sea SaltVerified Purchase
One person found this helpful
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Reviewed in the United States on January 19, 2022
Size: 10 GallonPattern Name: Sea SaltVerified Purchase
2 people found this helpful
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Reviewed in the United States on February 10, 2017
Size: 50 GallonPattern Name: Sea SaltVerified Purchase
2 people found this helpful
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Reviewed in the United States on November 23, 2023
Size: 50 GallonPattern Name: Sea SaltVerified Purchase

Top reviews from other countries

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YISS SANCH
5.0 out of 5 stars perfecto para un cambio de 5 gal
Reviewed in Mexico on January 24, 2024
Size: 10 GallonPattern Name: Sea SaltVerified Purchase
HectorD
5.0 out of 5 stars Buen precio
Reviewed in Mexico on January 21, 2024
Size: 160 GallonPattern Name: Sea SaltVerified Purchase
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HectorD
5.0 out of 5 stars Buen precio
Reviewed in Mexico on January 21, 2024
Llego rapido y a buen precio, gracias!
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5.0 out of 5 stars Good product
Reviewed in Canada on October 2, 2022
Size: 10 GallonPattern Name: Sea SaltVerified Purchase
N
4.0 out of 5 stars Salt was clumped
Reviewed in Singapore on December 27, 2022
Size: 50 GallonPattern Name: Sea SaltVerified Purchase
Eduardo Mar
5.0 out of 5 stars Satisfecho por la compra
Reviewed in Mexico on September 19, 2023
Size: 50 GallonPattern Name: Sea SaltVerified Purchase