Search  for anything...
Instant Ocean

Instant Ocean Reef Crystals Reef Salt, Formulated Specifically For Reef Fish Tank Aquariums

    • Based on 5,742 reviews
Condition: New
Checking for product changes
$66.70 Why this price?
Save $28.59 was $95.29

Buy Now, Pay Later

As low as $11.12 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Nov 25
Order within 8 hours and 57 minutes
Available payment plans shown during checkout

Size: 160-Gallon


Pattern Name: Aquarium Pond Water Treatment


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

Instant ocean reef crystals are easy-to-use and provide all of the necessary elements required for a healthy coral environment. extra calcium, trace elements and vitamins promote growth and support the health of a variety of corals; including stony corals, coralline algae, anemones and other invertebrates. built-in metal detoxifier goes a step farther to neutralize traces of heavy metals often found in domestic water supplies.Recommended Specific Gravity Range: 1.020-1.026 at 77°F.

Brand: Instant Ocean


Liquid Volume: 160 Gallons


Item Weight: 47 Pounds


Item Form: Granules


Target Species: Fish


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 12.5 x 12.5 x 15 inches; 47 Pounds


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ AQ-RC1160P-10


Department ‏ : ‎ Reef Care


Batteries ‏ : ‎ Product Specific batteries required.


Date First Available ‏ : ‎ October 15, 2006


Manufacturer ‏ : ‎ Instant Ocean


Country of Origin ‏ : ‎ USA


Item Weight: 47 pounds


Department: Reef Care


Manufacturer: Instant Ocean


Country of Origin: USA


Item model number: AQ-RC1160P-10


Batteries: Product Specific batteries required.


Date First Available: October 15, 2006


Item Package Dimensions L x W x H: 15 x 12 x 12 inches


Item Dimensions LxWxH: 12.5 x 12.5 x 15 inches


Item Weight: 47 Pounds


Brand Name: Instant Ocean


Target Audience Keyword: fish


Directions: See instructions


Country of Origin: United States


Warranty Description: See label for details


Model Name: Reef Crystals Reef Salt For Coral Reef Aquariums


Color: Multicolored


Size: 160-Gallon


Material: cotton


Age Range Description: All Life Stages


Number of Items: 1


Style: Unflavored


Included Components: See label


Specific Uses for Product: Active


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great stuff
Size: 160-Gallon Pattern Name: Aquarium Pond Water Treatment
Great bang for the buck. Great quality
Reviewed in the United States on May 18, 2024 by Gage Trump
    • Great salt
Size: 200-Gallon Pattern Name: Aquarium Pond Water Treatment
I feel bad for the delivery driver that has to routinely lug this 60 lb box to my door, unfortunately for him I will be buying again 🤣🫡
Reviewed in the United States on July 14, 2024 by Reese R
    • Been using Reef Crystals for years now
Size: 160-Gallon Pattern Name: Aquarium Pond Water Treatment
I've always used Reef Crystals in my saltwater aquariums. The price point and quality are incomparable. I like to buy the ones in the plastic buckets because when I am done I can use it for aquarium maintenance or for storage things in the garage.
Reviewed in the United States on June 8, 2024 by Ryes Against The Machine
    • It's the industries most popular salt for a reason.
Size: 160-Gallon Pattern Name: Aquarium Pond Water Treatment
I have been keeping Reef Aquariums for over 30 years, from the days when reefers salivated at what Julian Sprung would write his next magazine article. Instant Ocean is IMHO not the industry standard, there are certainly better salt mixtures you can buy but at the end of the day it will make very little difference as Instant Ocean is certainly good enough to keep any coral I have come across alive and thriving. I don't know why one guy is saying go to BRS for the salt. BRS is selling this for $63 while Amazon has it for $44 with free shipping if you have Prime. The reason this salt is the most popular is that it gives the greatest bang for the buck and while its one of the cheapest salts its still a very good salt. I am not a fan of some of the latest pharmaceutical grade multi mixture salts that require like five different things to be added in exact proportions to make a perfect batch of salt. It's too complicated and just an accident waiting to happen. I am a Fan of Red Sea Salt but at almost double the price per gallon of water and not seeing any difference in coral growth I went back slowly to instant Ocean. My tip to you is that when you make a mix of lets say 50 gallons of water you make sure to let it mix via the pumps for at least 24 hours and aerate it properly. Do not add salt all the way to 1.026ppm as the salinity will increase as the mix goes through the 24 hour cycle. I usually stop at 1.020ppm and then check it again in 12 hours and add more salt if needed. When that's done test the water for ALK, Calk and of course the temperature. Heat or Cool the batch to the temp of your tank and then test the Alk, Calk and Mg. If any of them are down from your aquariums parameters then add the needed components in small amounts until you get it as close to your tank water as possible. Typically with Instant Ocean I rarely have to add anything but sometimes it will be a bit low on the calcium side. Nothing earth shattering but just enough that I would feel better correcting it. ... show more
Reviewed in the United States on September 5, 2019 by Robbyg
    • Awesome aquarium salt, mixes fast!
Size: 160-Gallon Pattern Name: Aquarium Pond Water Treatment
have been keeping Reef Aquariums for over 30 years, from the days when reefers salivated at what Julian Sprung would write his next magazine article. Instant Ocean is IMHO not the industry standard, there are certainly better salt mixtures you can buy but at the end of the day it will make very little difference as Instant Ocean is certainly good enough to keep any coral I have come across alive and thriving. I don't know why one guy is saying go to BRS for the salt. BRS is selling this for $63 while Amazon has it for $44 with free shipping if you have Prime. The reason this salt is the most popular is that it gives the greatest bang for the buck and while its one of the cheapest salts its still a very good salt. I am not a fan of some of the latest pharmaceutical grade multi mixture salts that require like five different things to be added in exact proportions to make a perfect batch of salt. It's too complicated and just an accident waiting to happen. I am a Fan of Red Sea Salt but at almost double the price per gallon of water and not seeing any difference in coral growth I went back slowly to instant Ocean. My tip to you is that when you make a mix of lets say 50 gallons of water you make sure to let it mix via the pumps for at least 24 hours and aerate it properly. Do not add salt all the way to 1.026ppm as the salinity will increase as the mix goes through the 24 hour cycle. I usually stop at 1.020ppm and then check it again in 12 hours and add more salt if needed. When that's done test the water for ALK, Calk and of course the temperature. Heat or Cool the batch to the temp of your tank and then test the Alk, Calk and Mg. If any of them are down from your aquariums parameters then add the needed components in small amounts until you get it as close to your tank water as possible. Typically with Instant Ocean I rarely have to add anything but sometimes ... show more
Reviewed in the United States on December 27, 2023 by tomer 66
    • Reef salt
Size: 160-Gallon Pattern Name: Aquarium Pond Water Treatment
Got a great deal on this reef salt and don't have to continue to have to look for I have it set up to come every three months .
Reviewed in the United States on June 9, 2024 by Tarelle H.
    • Some of the best salt you can get
Size: 200-Gallon Pattern Name: Aquarium Pond Water Treatment
Some of the best salt you can get. Background: I'm an old timer marine aquarium enthusiast. I've tried all sorts of salt over the years. I use to use the ESV multi part salt mix. It was nice but too easy to mess up the ratios. My trace levels always seemed "off" with the ESV with crazy Mg and other elements being in error. Enter IO RC... this is nice salt. I mix per instructions of course but at a low'ish temperature. Once mixed I ramp up the water temperature prior to a water change. Elements falling out of solution is a bummer. Though even when careful it's going to happen sometimes and there is always some residue in the bottom of my mixing barrel. Parameters are always pretty good. And bang for the buck is right on. My box shipped just as pictured. A large Reef Crystals box, no damage was apparent though these can be easily punctured and make a mess. Always check you salt water prior to a water change. Crazy things can and do happen between batches or even in your technique when mixing up a batch. I test specific gravity, temp, pH, Mg and Ca/KH. Trying to exactly match these params to your tanks water is a waste of time. You just need to make sure your not too far from natural saltwater. And never go crazy with a water change, I do 20-30% max at a time. "Dilution is the solution" but you still need to take your time and dilute (acclimate) slowly for our lil'swimmers/crawlers sake. ... show more
Reviewed in the United States on March 20, 2015 by Robert
    • THE SALT! THE SALT! THE SALT!
Size: 160-Gallon Pattern Name: Aquarium Pond Water Treatment
If you instantly understood my review title, then we can be friends! Great product! Never expected anything less.
Reviewed in the United States on April 3, 2024 by Gary Dale

Can't find a product?

Find it on Amazon first, then paste the link below.