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Your cart is empty.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.
Caiden Johnson
2025-09-04 15:53:49
Big bucket that is easily the most bang for your buck! Mixes up super easy, clear and will last you a long time unless you have a massive tank!
kathy franks
2025-09-03 15:34:38
Tried and trusted for years. It's not just salt. Very good for calcium additive is an important bonus.
KH
2025-08-22 15:22:27
When I’ve ordered salt in buckets in the past, it came in bags inside the bucket. In this case it is loose in the bucket, so overtime the salt may clump. Otherwise it is a very good product for a good price.
Ed reyes
2025-08-19 17:57:54
The media could not be loaded.
tomer 66
2025-08-05 13:29:30
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
Spring3100
2025-08-03 12:07:44
Great salt been using for 25 years. Great bang for the buck.Highly recommend!
Smiilez33
2025-07-27 14:10:22
I would buy again and again
Robbyg
2025-07-25 11:12:57
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.
GC
2025-07-17 20:16:54
Great price for $65.00 with free shipping. Have been using Reef Crystals for about eight months now without any problems... creates good stable parameters for a reef aquarium stocked with softies, SPS, and LPS. Previously was using DD H2Ocean - but I recommend Reef Crystals as it is better value and does a better job IMO
Martyn Rogers
2025-07-11 17:55:22
reef crystals, whadya gonna say? theyre reef crystals. i've been using this brand since the 1980s. i think. i cant remember, hang on a minute.... yeah, yeah. it was the eighties when i first had my shallow 20. we used to think saltwater fish were expensive back then! holy moly! have you seen the price of those new designer clowns!? i wouldnt be putting any of those carpet crunchies in anything shallower than 19 inches. and with a tight fitting lid!... shallow 20.. pfft..most expensive aquarium of my life.anyways... yeah reef crystals. been using them for, holy moly, decades. good salt for your tank. good for your corals. check your sg regularely .
Chris Spencer
2025-07-08 17:10:41
Very good salt for reef tanks. Contains higher concentration of elements than it's little brother, Instant Ocean. Given that I don't think I would use this in a fish only tank. Use a mixing station with a powerhead for a good mix.
Uriel Mancilla Basilio
2025-06-17 13:15:55
Excelente producto.
McMoney
2025-06-03 10:08:50
On time and exactly what was listed
Caiden Johnson
2025-05-21 17:14:34
Big bucket that is easily the most bang for your buck! Mixes up super easy, clear and will last you a long time unless you have a massive tank!
kathy franks
2025-05-11 16:38:05
Tried and trusted for years. It's not just salt. Very good for calcium additive is an important bonus.
KH
2025-05-09 16:12:16
When I’ve ordered salt in buckets in the past, it came in bags inside the bucket. In this case it is loose in the bucket, so overtime the salt may clump. Otherwise it is a very good product for a good price.
Ed reyes
2025-04-27 13:03:57
The media could not be loaded.
tomer 66
2025-04-05 11:35:33
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
Spring3100
2025-03-19 14:34:11
Great salt been using for 25 years. Great bang for the buck.Highly recommend!
Smiilez33
2025-03-18 10:05:16
I would buy again and again
Robbyg
2025-02-25 16:11:39
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.
GC
2025-02-17 15:43:38
Great price for $65.00 with free shipping. Have been using Reef Crystals for about eight months now without any problems... creates good stable parameters for a reef aquarium stocked with softies, SPS, and LPS. Previously was using DD H2Ocean - but I recommend Reef Crystals as it is better value and does a better job IMO
Martyn Rogers
2025-02-09 09:38:43
reef crystals, whadya gonna say? theyre reef crystals. i've been using this brand since the 1980s. i think. i cant remember, hang on a minute.... yeah, yeah. it was the eighties when i first had my shallow 20. we used to think saltwater fish were expensive back then! holy moly! have you seen the price of those new designer clowns!? i wouldnt be putting any of those carpet crunchies in anything shallower than 19 inches. and with a tight fitting lid!... shallow 20.. pfft..most expensive aquarium of my life.anyways... yeah reef crystals. been using them for, holy moly, decades. good salt for your tank. good for your corals. check your sg regularely .
Chris Spencer
2025-01-26 17:30:14
Very good salt for reef tanks. Contains higher concentration of elements than it's little brother, Instant Ocean. Given that I don't think I would use this in a fish only tank. Use a mixing station with a powerhead for a good mix.
Uriel Mancilla Basilio
2024-12-07 12:46:00
Excelente producto.
McMoney
2024-11-20 10:01:49
On time and exactly what was listed
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