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Red Sea

Red Sea Coral Pro Reef Salt Mix Small Bucket - Makes 55 Gallons Complete Marine Saltwater Aquarium Advanced Formula Optimal Coral Health & Stability

  • Based on 2,118 reviews
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Availability: In Stock.
Fulfilled by SaltwaterAquarium
Arrives Wednesday, Apr 29
Order within 4 hours and 52 minutes
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Size: 55-Gallon


Color: White


Features

  • Coral pro salt is the ideal salt mix for reef aquariums, encouraging accelerated, healthy growth and enhanced vitality of all corals
  • All corals build their skeletons by absorbing the major, minor and trace elements that they need from the surrounding water
  • Shown that the ratio between calcium/magnesium/carbonates is paramount for the corals to efficiently takes these elements from the water and grow
  • Provides the basis for accelerated healthy growth of all soft, LPS and SPS corals and is particularly recommended for growing out SPS coral frags
  • Available in 55-gallon pail

Description

Specially formulated for the use with reverse osmosis waterRed Sea is please to announce the addition of an innovative new salt formula designed to meet the needs of today`s advanced hobbyist. Coral Pro Salt has been specifically formulated for use with "mineral free" Reverse Osmosis, or soft tap water and contains the elevated levels of calcium and buffer capacity that provide the extended availability of these elements, essential for vibrant coral growth. Utilizing the same natural sea minerals used in Red Sea Salt the new Coral Pro Salt will enable all reverse osmosis users and reef enthusiast a superior product with out the need for immediate supplementation. Chemically balanced formula to support the most delicate Corals and other marine life Reaches a stable, natural pH shortly after mixing Free of Nitrates & Phosphates Produced by a small batch process to ensure homogeneity and consistency of the salt mixtureCorals, calcareous algae and other invertebrates use large amounts of Calcium for the building of their skeletons or shells. The Calcium level in natural seawater at 35ppt is approximately 400 ppm. The Coral Pro formula provides elevated levels of calcium at the "lower than natural" salinities preferred in reef aquariums. Table shows Calcium levels of Coral Pro mixed in RO water at 24øC 75øF and salinity. s. g. Salinity Calcium Qty of Salt 1. 021 30. 6 ppt 420 ppm 33. 4 g/l 1. 4 lb/5 US gal 1. 023 32. 8 ppt 450 ppm 35. 8 g/l1. 5 lb/5 US gal 1. 025 35. 0 ppt 480 ppm 38. 2 g/l1. 6 lb/5 US galCoral Pro is available in the following consumer packs: 7 kg (15. 4 lb) - 210 L (55 gal)22 kg (48. 4 lb) - 660 L (175 gal)

Brand: Red Sea


Liquid Volume: 55 Gallons


Item Weight: 1 Pounds


Item Form: Granules


Manufacturer: TopDawg Pet Supply


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 8.27 x 8.27 x 9.45 inches; 1 Pounds


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ 306003


Date First Available ‏ : ‎ November 8, 2007


Manufacturer ‏ : ‎ TopDawg Pet Supply


Best Sellers Rank: #27,501 in Pet Supplies (See Top 100 in Pet Supplies) #260 in Aquarium Water Treatments


#260 in Aquarium Water Treatments:


Customer Reviews: 4.4 4.4 out of 5 stars (2,155)


Brand Name: Red Sea


Manufacturer: TopDawg Pet Supply


UPC: 730773112203 781163898962 634252035178


Global Trade Identification Number: 46


Item Type Name: Red Sea Fish Pharm ARE11220 Coral Pro Marine Salt for Aquarium, 55-Gallon


Included Components: all


Unit Count: 1 Count


Warranty Description: Manufacturer Warranty


Liquid Volume: 55 Gallons


Item Weight: 1 Pounds


Item Form: Granules


Target Species: Fish


Allergen Information: Nut Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Apr 29

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

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View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Reef salt
Good quality salt. And perfect amount for multiple water changes for my 20 gallon tank.
Reviewed in the United States on March 21, 2026 by Dale F.
    • Best salt
Invest salt for mixed reef imo, with regular water changes I have great Ca and Akaline measurements all the time
Reviewed in the United States on March 4, 2026 by Amber
    • No broken bucket
Red Sea is a good quality salt mix to purchase. I know the biggest issue is that the salt bucket arrives damaged. I like to thank Saltwater Aquarium to take the extra time to package it. They use bubble wrap all around the bucket and the bottom to give it protection and also put it in a sturdy box.
Reviewed in the United States on March 4, 2026 by LP
    • The Foundation of a Thriving Reef Tank
Excellent Reef Salt — Noticeable Growth Already I’ve been using Red Sea Coral Pro for about two weeks and I’m already seeing new growth on several of my corals. The mix dissolves cleanly and holds parameters steady, which makes maintenance so much easier. Reef salt is the foundation of a healthy tank, and this one delivers consistent results. Definitely worth it if you want faster coral growth and stable water chemistry. ... show more
Reviewed in the United States on October 21, 2025 by Sarah
    • 4x more expensive for similar results
Review Image by Disciple of Hugeness
I had been using coralife in my tank without my issues but thought I would give this a try in my established 120 gal reef tank to see if it impacted coral growth. I am fairly laissez faire, doing 10% tank changes every 2-3 weeks, and adjusting parameters quarterly based on ATI water testing. I run a phytotank algae reactor, and in sump skimmer that I clean every week. After 6 months, I didn’t notice any significant difference in my ATI water testing results, need for micro dosing, or coral or anemone growth. I did notice I needed 6 half-cups per 5 gallons to maintain salinity, where corallife and instant ocean needed 5 half-cups per 5 gallons. It seems most salts have very high reviews, but I suspect that when a reefer is changing their salt, they are sort of doing a second take and optimizing a lot of other things. So was it the new light schedule, the new filter, or the new refugium. Salt for salt, this performed as well as much cheaper instant ocean and coral life. For return on investment, I found the money was much better spent on the $100 phytotank algae reactor which was a real game changer for my tank health. ... show more
Reviewed in the United States on March 12, 2022 by Disciple of Hugeness
    • Awesome salt. Read review
I've been in the hobby since 1988. In this amount of time I've used at least a dozen salts and never written a review. I love this hobby and want to provide the best environment I can. I also want honest reviews. Non biased. From people who have used the products. There are lots of you out there with amazing experience in this hobby. This review may not be for you. For those who are new or just want to try something else just read along. I started with instant ocean. I still keep some for emergencies. Mixes well and is pretty consistent. You can buy it anywhere. Not my go to but nothing wrong with it. Just thought there has to be something better. Reef crystals. Not a fan. Pretty dirty. Has anti caking agents. Will dirty any mixing bucket fast. Coralife. Used many years ago but only with fish. Never had a problem with it. Mixes well but haven't used it in years. It's cheap. Reef salt by seachem. Probably my favorite but they don't make it anymore. Vibrant sea. Love seachem but this salt doesn't mix well. It's cheap for what you get and I'm sure it's professional salt-its seachem but I have had no luck with it. Brightwell. Smells wierd. Gets great reviews everywhere but I've used it 4 different times with bad results. My tank doesn't like it. Low in ALK. Recommended by many just not me. Kent marine. I love this salt but I can't use it anymore. Just not consistent enough from batch to batch. Calcium is not consistent. Hopefully that helps if you were wondering. Now to red sea coral pro. Gotta use ro water. Mix it in a bucket with a powerhead. Don't mix for more than 4 hours. It mixes clean. Don't have to wait for it to change water. Consistent. Perfect water quality. Best salt I've ever used. Period. Tank has never looked better. Yeah this little bucket is spendy. Yeah the bucket sucks. Might even be broken But this is hands down the best salt I've ever used. ... show more
Reviewed in the United States on July 7, 2020 by solitary man
    • Overpriced, not enough salt for the price. Return cost sucks
Don’t buy this. Excessively overpriced. Bought 2 and didn’t realize it wasn’t going to accommodate the same volume as a $99 bag. I had to pay $9 for a return box and they will sub tract the return shipping cost from your purchases. So this return still cost me money. DONT BUY.. get a bad for more salt less per pound. Update: I received a message from the seller that the product arrived broken and stuff, so no refund. I followed all the required step per Amazon. Nonetheless, don’t buy this product at least not from this seller. Price per gallon is off because if you purchase the $99 one you get more use of it for price per gallon. ... show more
Reviewed in the United States on December 6, 2025 by George Sefa
    • Good product but poor mail man.
This was NOT delivered because the mail man refused to deliver it. I picket it up at the post office.
Reviewed in the United States on February 12, 2026 by Barbara Goldberg

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