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Instant Ocean Reef Crystals Reef Salt For 50 Gallons, Enriched Formulation For aquariums

4.7 4.7 out of 5 stars 1,442 ratings
$24.40
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Purchase options and add-ons

Brand Instant Ocean
Liquid Volume 50 Gallons
Item Weight 0.01 Ounces
Item Form Stick
Target Species Coral

About this item

  • Contains essential ocean reef elements in concentrations greater than those found in natural sea water
  • Recommended specific gravity range – 1.020-1.026 at 77ᵒ F | Note – 1.4 lbs. of Reef Crystals is formulated to create 5 gallons of saltwater at a specific gravity of 1.021
  • Our marine salt will typically set the pH of a tank between 8.0 and 8.3 while it produces between 7 and 10 dKH
  • Encourages stony coral and coralline algae growth | Product has a chelator in it that removes the metals from solution
  • Provides vital nutrients | Neutralizes traces of heavy metals found in tap water | It is not generally recommended to use Reef Crystals in freshwater situations

Customer ratings by feature

Easy to use
4.8 4.8
Value for money
4.6 4.6
Accuracy
4.4 4.4
See all reviews
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From the manufacturer

-

Instant Ocean Reef Crystals Reef Salt for Reef Aquariums

Product Details:

  • Specially formulated for use in reef aquariums – contains essential ocean reef elements in greater concentrations than natural sea water
  • Contains extra calcium to ensure stony coral and coralline algae growth, extra trace elements to provide vital nutrients and extra vitamins to support vigorous growth and survival of corals, anemones and other invertebrates in a captive environment
  • Neutralizes trace heavy metals often found in tap water

Product 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.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 16.5 x 13 x 2.5 inches; 0.01 ounces
  • Manufacturer recommended age ‏ : ‎ 1 month and up
  • Item model number ‏ : ‎ RC3-50
  • Department ‏ : ‎ Reef Care
  • Date First Available ‏ : ‎ August 2, 2006
  • Manufacturer ‏ : ‎ Instant Ocean
  • ASIN ‏ : ‎ B000HCLNR0
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.7 4.7 out of 5 stars 1,442 ratings

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Instant Ocean Reef Crystals Reef Salt For 50 Gallons, Enriched Formulation For aquariums

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Important information

Directions

1. Mix Reef Crystals with ordinary dechlorinated tap or purified water.To prepare small quantities, use 1/2 cup of Reef Crystals per each U.S. gallon of water. Mix as directed. 2. Stir vigorously to ensure a good mix. Although the Reef Crystals solution may be used immediately, we suggest aerating the water until it achieves oxygen/carbon dioxide equilibrium. 3. Measure specific gravity with an Instant Ocean® Hydrometer.Recommended Specific Gravity Range: 1.020-1.026 at 77°F. 1.4 lbs of Reef Crystals is formulated to create 5 gallons of saltwater at a specific gravity of 1.021. 4. Adjust salt level accordingly. If specific gravity is too low, add more Reef Crystals. lf too high, add more dechlorinated water. Change 20% of aquarium water every two weeks to maintain optimum water quality

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Instant Ocean Reef Crystals Reef Salt For 50 Gallons, Enriched Formulation For aquariums
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Price$24.40-10% $11.69
List: $12.99		$21.99$21.00$99.99$139.99
Delivery
Get it as soon as Sunday, May 12
Get it as soon as Sunday, May 12
Get it as soon as Sunday, May 12
Get it as soon as Sunday, May 12
Get it May 9 - 13
Get it May 9 - 13
Customer Ratings
4.74.7 out of 5 stars1,442
4.74.7 out of 5 stars105
4.74.7 out of 5 stars105
4.84.8 out of 5 stars7,869
4.74.7 out of 5 stars5,692
4.74.7 out of 5 stars120
Easy to use
4.8
5.0
5.0
4.6
4.4
3.0
Value for money
4.6
5.0
5.0
4.6
4.3
2.7
Accuracy
4.4
5.0
5.0
4.5
—
2.3
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
SaltwaterAquarium
SaltwaterAquarium
target species
Coral
Fish
Fish
Fish
Fish
Fish
liquid volume
50 gallons
1 gallons
1 gallons
50 gallons
5.0 gallons, 200.0 gallons
200 gallons
form
Stick
Powder
Powder
Stick
—
—
weight
0.01 ounces
4.6 pounds
9.2 pounds
6.8 kilograms
58 pounds
0.02 pounds

Customer reviews

4.7 out of 5 stars
4.7 out of 5
1,442 global ratings

Customers say

Customers like the performance, effect on coral growth, ease of clearing, value, and versatility of the aquarium pond water treatment. They mention that it works well, promotes coral growth and is easy to mix. Some appreciate the value for money. They also say it's great for fish and live rock aquariums. Customers are also satisfied with ease of mixing, and quality.

AI-generated from the text of customer reviews

62 customers mention58 positive4 negative

Customers are satisfied with the quality of the aquarium pond water treatment. They mention that it's a great reef aquarium salt, a good mid grade salt, and one of the best synthetic salts on the market. Some say that the bag came in great condition and there were no clumps.

"Has all the nutrients and minerals my corals need. Happy corals, happy fish, thriving reef tank." Read more

"Good reef salt buy it if ur doing a reef or a fowlr tank" Read more

"Great product" Read more

"Very nice" Read more

33 customers mention33 positive0 negative

Customers find the value of the aquarium pond water treatment to be great. They say it's a low-cost reef salt that keeps things alive. Some customers also mention that it'll be worth it for the extra elements and calcium.

"...This salt quality makes my corals very happy with a good price point...." Read more

"Been using reef crystals for years. It's a great value ! Works well with all coral types...." Read more

"When I saw this deal, I was so surprised… it’s value for money… I used to buy it at fish stores, but no anymore…" Read more

"...The quality is great and the price can't be beat, if you are starting up a tank for the first time or looking for a better mixing salt you should..." Read more

22 customers mention22 positive0 negative

Customers are satisfied with the performance of the aquarium pond water treatment. They mention that it works well, has no issues or complaints, and is a great value. Some say that it's good for reef tanks and works well with all coral types.

"Been using reef crystals for years. It's a great value ! Works well with all coral types...." Read more

"Been using this salt for the past 3 years, tank is running great with this salt." Read more

"I love the product it works well for my Reef tank and is very cost effective when doing 5 gallon a day water changes on my 120 g tank" Read more

"...Works great, dissolves easily." Read more

13 customers mention13 positive0 negative

Customers find the aquarium pond water treatment easy to mix. They say it improves coral growth, and that it mixes well in water. Some say that it's easy enough to mix up for water changes and to set up a new reef.

"Mixes very well. Easier than Red sea." Read more

"...It is easy to mix and stays diluted once it is mixed not salt deposits left at the bottom of the mixing container...." Read more

"Mixes well in water." Read more

"So far so good. It’s easy to mix does take a while to clear up in the gallon but for the price I can’t complain...." Read more

13 customers mention13 positive0 negative

Customers say the aquarium pond water treatment promotes coral growth and supports coral life. They also say it's good for soft corals and beginners. Customers also mention that their fish are healthy when they use it.

"Has all the nutrients and minerals my corals need. Happy corals, happy fish, thriving reef tank." Read more

"This is a good product. My fish were healthy when I used it...." Read more

"...This salt quality makes my corals very happy with a good price point...." Read more

"...This is a middle range salt which gets the job done and supports coral life." Read more

9 customers mention9 positive0 negative

Customers find the aquarium pond water treatment dissolves quickly and easily. They say the water turns clear within 15 minutes.

"...This salt dissolves easily & helps my tank stay with low nitrates, and the corals love it...." Read more

"...It's got all the same perks as the regular stuff, fast dissolving etc." Read more

"...Salt dissolves quickly and easily. I throw my salt and water in a bucket, insert a power head to mix and the water turns clear within 15 minutes...." Read more

"This is all I have used since starting my reef tank. Dissolves quickly. Get your water ROed." Read more

7 customers mention7 positive0 negative

Customers find the aquarium pond water treatment great for fish and live rock aquariums. They say it's well suited for reef tanks and salt water aquariums, and is perfect for the reefing hobby.

"...Happy corals, happy fish, thriving reef tank." Read more

"...Its a good mid grade salt. Great for fish tanks, but for reef tanks you will have to consider what your caring for...." Read more

"Perfect for my planted Saltwater system which as high calcium needs!" Read more

"...It's cheaper than other brands but still well suited for reef tanks." Read more

4 customers mention4 positive0 negative

Customers find the aquarium pond water treatment easy to use. They mention it mixes very well, and is great for beginners.

"Mixes very well. Easier than Red sea." Read more

"Great for beginner enthusiast in the saltwater aquarium world great price!..." Read more

"saltwater is easy to use" Read more

"Easy to use..." Read more

All I trust
5 Stars
All I trust
I’ve used this salt from day one an have had no issues whatsoever
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Top reviews from the United States

Clara J. McGill
5.0 out of 5 stars The only salt I use in my reef tank
Reviewed in the United States on March 16, 2024
Verified Purchase
Has all the nutrients and minerals my corals need. Happy corals, happy fish, thriving reef tank.
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Derrick Steigelman
5.0 out of 5 stars Great reef salt
Reviewed in the United States on April 28, 2024
Verified Purchase
Good reef salt buy it if ur doing a reef or a fowlr tank
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Chris W.
5.0 out of 5 stars Awesome value
Reviewed in the United States on March 18, 2024
Verified Purchase
I’ve had multiple reef tanks for over 20 years have grown all types of coral, hard and soft tested this salt. Multiple times perimeters are outstanding don’t waste your money on those expensive salts.
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Amazon Customer
5.0 out of 5 stars This is good salt for your fish
Reviewed in the United States on December 14, 2023
Verified Purchase
This is a good product. My fish were healthy when I used it. I don’t have marine fish anymore because they catch them from the wild And our reefs are already in decline
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Kenneth Wilson
4.0 out of 5 stars Love it
Reviewed in the United States on April 29, 2024
Verified Purchase
Great product
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Nice item
5.0 out of 5 stars The best
Reviewed in the United States on January 28, 2024
Verified Purchase
Very nice
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Aly
5.0 out of 5 stars Corals love it. But prepare for longer mixing times.
Reviewed in the United States on January 8, 2021
Verified Purchase
Be careful with big bags, because the plastic rips very easily.

This salt quality makes my corals very happy with a good price point. I’m still inexperienced, so when I switched from what I used before, I noticed the difference in their response to water changes immediately. They open beautifully.

Other than that, it does take a bit more time to dissolve than I’d like. The brand I switched from was about the same consistency and dissolved very fast.

I have one pico reef and only do 1gal changes at a time, so my mixtures don’t have a lot of salt at all with heaters and bubblers to dissolve it. But it does take over an hour to fully dissolve just a gallon, so even though it dissolves better when water reaches ideal reef temperatures, add it in a little earlier than your water reaches desired temp while aerating, but crank up the aeration and just make sure your mixing container is well-covered. Probably do a periodic manual mixing or run a small pump in your container, if you do big changes.

If you add it after waiting for warm-up, you’ll still wait as long as you’re already waiting for the mixture to aerate and fully heat for transfer. Only changes are: increasing aeration/+physical mixing for large changes and prepping for a bit of splash-back with the right coverage
5 people found this helpful
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Top reviews from other countries

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Vincent Paquet
5.0 out of 5 stars Tres bonne qualiter
Reviewed in Canada on September 14, 2023
Verified Purchase
Excellent pour rajouter de la saliniter a un petit aquarium de 500ml d'artemias, elle ce dissou bien dans l'eau et asser rapidement,doublé a de l'eau distiller donne une eau saler d'excellante qualiter je recommande fortement.
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Happypaps
5.0 out of 5 stars 2 thumbs up.
Reviewed in Canada on October 21, 2019
Verified Purchase
Suites my nano reef. Good thing I switched. Nano reef looks healthier
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Rob
4.0 out of 5 stars Great product for Salt Water Prep …
Reviewed in Canada on January 14, 2023
Verified Purchase
Fast Amazon delivery. Received Brand New. Slightly more expensive than other products but delivered fast so worth it. Will update when the marine nano tank is finished.
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Jair Godinez
5.0 out of 5 stars Precio beneficio
Reviewed in Mexico on August 5, 2022
Verified Purchase
Muy buena sal respecto a composición precio beneficio
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M.
3.0 out of 5 stars Great product, but much cheaper elsewhere
Reviewed in Canada on December 2, 2023
Verified Purchase
This arrived quickly and without damage, but I was disappointed to see the regular price of the same sized bag is $29 in local fish stores.
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