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Instant Ocean Sea Salt (160 gal)

  • Based on 8,264 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
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Arrives Jan 20 – Jan 22
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Size: 160 Gallon


Features

  • FORMULATED SPECIFICALLY FOR REEF AQUARIUMS: Contains essential ocean reef elements in concentrations greater than those found in natural sea water
  • EXTRA CALCIUM: Encourages stony coral and coralline algae growth.
  • EXTRA TRACE ELEMENTS: Provides vital nutrients.
  • EXTRA VITAMINS: Helps promote growth and survival of corals, anemones and other invertebrates in a captive environment.
  • DETOXIFIES METALS: Neutralizes traces of heavy metals found in tap water.

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 Reef Crystals Reef Salt is formulated especially for use in reef aquariums. It contains essential ocean reef elements in concentrations greater than those found in natural sea water. Extra calcium encourages the growth of large and small polyp stony corals (LPS and SPS) as well as coralline algae. Extra trace elements provide an additional measure of vital nutrients, and extra vitamins help to promote vigorous growth and survival of corals, anemones and other invertebrates in a captive environment. Neutralizes traces of heavy metals often present in tap water. Mix Instant Ocean Reef Crystals Reef Salt with ordinary dechlorinated tap water – 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 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.

Brand: Instant Ocean


Liquid Volume: 160 Gallons


Item Weight: 46 Pounds


Item Form: Granules


Manufacturer: Instant Ocean


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 10.3 x 10.2 x 14.8 inches; 46 Pounds


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ AQ-SS1160P-10


Batteries ‏ : ‎ Product Specific batteries required.


Date First Available ‏ : ‎ June 9, 2004


Manufacturer ‏ : ‎ Instant Ocean


Best Sellers Rank: #4,159 in Pet Supplies (See Top 100 in Pet Supplies) #13 in Aquarium Water Treatments


#13 in Aquarium Water Treatments:


Item Weight: 46 pounds


Manufacturer: Instant Ocean


Item model number: AQ-SS1160P-10


Batteries: Product Specific batteries required.


Date First Available: June 9, 2004


Item Package Dimensions L x W x H: 14 x 12 x 12 inches


Item Dimensions LxWxH: 10.3 x 10.2 x 14.8 inches


Item Weight: 46 Pounds


Brand Name: Instant Ocean


Target Audience Keyword: fish


Directions: 1. Dissolve the required amount of Instant Ocean Sea Salt in water, using chart on package as a guide. 2. Stir water to ensure salt is fully dissolved. 3. Use treated for your reef aquarium or pond.


Country of Origin: United States


Warranty Description: See Label.


Model Name: Sea Salt for Marine Aquariums


Color: Blues & Purples


Size: 160 Gallon


Material: cotton


Age Range Description: all


Number of Items: 1


Style: Unflavored


Included Components: See Label


Specific Uses for Product: Outdoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 20 – Jan 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • 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. ... show more
Reviewed in the United States on January 19, 2022 by Larry W

  • Saltwater salt is recommended
Size: 50 Gallon
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
Reviewed in the United States on December 15, 2025 by Dan Rodgers

  • Great for a Reef Aquarium
Size: 200 Gallon
My fish are alive and this stuff is easy to use. I can tell it’s legit because it’s exactly what my local fish store uses (They have a lot of healthy saltwater fish). I do mess around with the amount per gallon and I don’t use exactly what the recommend, but my salinity is always spot-on. I like the individually packed bags. ... show more
Reviewed in the United States on May 4, 2025 by Else Else

  • Great Product
Size: 50 Gallon
Great supplement for hermit crabs salt water needs. Large bag lasts a very long time. Wish they still made the smaller boxes. Easy to use, goes a long way and do recommend.
Reviewed in the United States on September 5, 2025 by B

  • Works good for 3 tanks
Size: 50 Gallon
This is the 2nd bag we have bought in the past year for my son’s 3 saltwater tanks. It keeps the water quality and ammonia levels where it should be. This is quick to react and doesn’t affect the color of the water. Keeps fish tanks healthy. Will buy again!
Reviewed in the United States on December 3, 2025 by William R.

  • Good
Size: 50 Gallon
Good
Reviewed in the United States on December 6, 2025 by Linda Rich

  • No problems at all
Size: 50 Gallon
I've been a saltwater hobbyist (45 gallon) for almost 10 years now and since the very beginning have been using this brand of salt with no problems at all. 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. To mix this salt I use R/O water in a glass jar, pour in the salt and then fill with water. I shake it for a few seconds and let it sit till the salt dissolves. When the salt dissolves I start pouring slowly into the tank and measuring the salt amount with my meter. Other brand name salts that compare to this one are smaller grained and dissolve faster but for me, I have no issue waiting and I've noticed that on occasion over the years passed that if I do get impatient and pour some undissolved salt into the tank it doesn't seem to harm the fish or coral- some salts are not recommended to pour directly into the tank without dissolving first like I mention above in a glass jar with R/O water. Overall I favor this brand and have used it for so many years that switching now seems pointless. I'd recommend to others as I've had no problems with this product over the years. ... show more
Reviewed in the United States on February 10, 2017 by Cat Lady

  • used for my Opau Ula Hawaiian shrimp
The media could not be loaded. works really well, safer than other alternatives. These shrimp need brackish water so measuring is essential AND be sure to full dissolve before adding any livestock. This salt has a fairly quick dissolve rate. Highly recommend.
Reviewed in the United States on December 31, 2024 by Tesla

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