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Your cart is empty.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.
Kindle Customer
Reviewed in the United States on March 6, 2025
Been using reef salt for mixed reef with basic corals and has always had good results. My only gripe is the sediment it leaves in mixed water and a bit cloudy when putin tank. Filterfloss clearsit up pretty quick though once added to water.Good Price / good reef salt
Stephanie k
Reviewed in Canada on March 13, 2025
Great product , fast shipping
Joe Sweeb
Reviewed in the United States on March 1, 2025
Always my go to
Marco Antonio González
Reviewed in Mexico on February 6, 2025
Muy buen producto, es de los más comunes y accesibles
Customer
Reviewed in the United States on February 22, 2025
Very useful
Kevin B
Reviewed in Canada on January 5, 2025
Stop buying the most expensive stuff this is an amazing products for my reef tank
Customer
Reviewed in the United States on January 16, 2025
Excellent product, easy to mix, great for the whole tank!
Brian Mulligan
Reviewed in the United States on January 15, 2025
Fish do well, nice color
Client
Reviewed in Canada on August 10, 2024
Dissolve quickly, no crust. I use this brand for many years, and all my marine fishes are happy.
Jokebed
Reviewed in the United States on November 6, 2024
Happy marine fish and corals.
Customer Review
Reviewed in Canada on October 26, 2024
Used it to make my aquarium a saltwater environment. Worked pretty well, be warned it’s a huge bag.
Kenneth Wilson
Reviewed in the United States on April 29, 2024
Great product
Aly
Reviewed in the United States on January 8, 2021
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
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