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20 Best Dosing Supplements Reef Tank (2023 Updated)

Reef tanks are home to many different types of coral and other marine life. In order to maintain a healthy reef tank, it is important to provide the inhabitants with the proper nutrients. One way to do this is to dose supplements into the tank on a regular basis.

There are a variety of different supplements that can be used in reef tanks. The most common type of supplement is calcium. Calcium is a essential nutrient for coral growth. Other common supplements include magnesium, iodine, and strontium.

Dosing supplements into a reef tank is not difficult, but it is important to follow the instructions on the product labels. Overdosing can be harmful to the inhabitants of the reef tank.

20 Best Dosing Supplements Reef Tank

Product Image Product Name Features Price

Seachem Reef Plus (500 mL)

  • 500 ml

Seachem Reef Complete – 2 L

  • 2 L

Red Sea Reef Foundation A (Ca/Sr) 500ml

  • 500 ml

Seachem Laboratories Reef Iodide – 8.5 oz bottle

  • 250 ml

Reef Calcium (250 mL)

  • Increases the bioavailability of the calcium.
  • Provides a rich source of metabolic energy to help maintain peak coral growth.

Seachem Reef Fusion 1 – 1 L

  • Provides 100,000 mg per liter of ionized calcium.
  • Restores and maintains the alkalinity of the water.
  • The most concentrated two-part system, simple 1:1 ratio.

ATI Elements Calcium Supplement for Reef Aquarium 1000ml

  • ATI Calcium 1000 ml is required with the construction of the coral skeleton.
  • Calcium carbonate is required with the construction of the coral skeleton. Even more important is its function in the metabolism of organisms.

Seachem Reef Fusion 1 – 500 ml

  • Helps maintain the critical levels of calcium for healthy coral growth
  • Provides biologically appropriate levels of other elements & trace minerals

Seachem Reef Fusion 2 – 500 ml

  • 500 ml

Brightwell Aquatics Strontion Reef Supplements – 17 fl oz bottle

  • Highly concentrated ionic strontium solution
  • Contains no unwanted organic material
  • Provides invertebrates, clams and other reef-building creatures an essential component to aragonite construction

PolypLab RA One – 500 ml

  • 500 ml

First Defense Reef 16oz

  • 16 oz

Reef Builder 600g – Seachem

  • 600 g

Seachem Reef Advantage Magnesium

  • 300 g

Seachem Reef Strontium 4L/1 Gal

  • Raises strontium levels in reef aquariums
  • Intended to restore and maintain strontium to levels found in natural seawater without affecting pH

Red Sea Reef Foundation A (Ca/Sr) 1kg

  • Key Benefits.
  • This Product Is Easy To Use.
  • This Product Adds A Great Value.

Red Sea Reef Foundation B (ALK) 1kg

  • Red Sea Reef Foundation B.
  • Calcium, magnesium, strontium and carbonate are the basic foundation elements of coral skeletons.

Seachem Reef Carbonate – 250 ml

  • 250 ml
Seachem Reef Plus (500 mL)
  • 500 ml
Seachem Reef Complete – 2 L
  • 2 L
Red Sea Reef Foundation A (Ca/Sr) 500ml
  • 500 ml
Seachem Laboratories Reef Iodide – 8.5 oz bottle
  • 250 ml
Reef Calcium (250 mL)
  • Increases the bioavailability of the calcium.
  • Provides a rich source of metabolic energy to help maintain peak coral growth.
Seachem Reef Fusion 1 – 1 L
  • Provides 100,000 mg per liter of ionized calcium.
  • Restores and maintains the alkalinity of the water.
  • The most concentrated two-part system, simple 1:1 ratio.
ATI Elements Calcium Supplement for Reef Aquarium 1000ml
  • ATI Calcium 1000 ml is required with the construction of the coral skeleton.
  • Calcium carbonate is required with the construction of the coral skeleton. Even more important is its function in the metabolism of organisms.
Seachem Reef Fusion 1 – 500 ml
  • Helps maintain the critical levels of calcium for healthy coral growth
  • Provides biologically appropriate levels of other elements & trace minerals
Seachem Reef Fusion 2 – 500 ml
  • 500 ml
Brightwell Aquatics Strontion Reef Supplements – 17 fl oz bottle
  • Highly concentrated ionic strontium solution
  • Contains no unwanted organic material
  • Provides invertebrates, clams and other reef-building creatures an essential component to aragonite construction
PolypLab RA One – 500 ml
  • 500 ml
First Defense Reef 16oz
  • 16 oz
Reef Builder 600g – Seachem
  • 600 g
Seachem Reef Advantage Magnesium
  • 300 g
Seachem Reef Strontium 4L/1 Gal
  • Raises strontium levels in reef aquariums
  • Intended to restore and maintain strontium to levels found in natural seawater without affecting pH
Red Sea Reef Foundation A (Ca/Sr) 1kg
  • Key Benefits.
  • This Product Is Easy To Use.
  • This Product Adds A Great Value.
Red Sea Reef Foundation B (ALK) 1kg
  • Red Sea Reef Foundation B.
  • Calcium, magnesium, strontium and carbonate are the basic foundation elements of coral skeletons.
Seachem Reef Carbonate – 250 ml
  • 250 ml

1. Seachem Reef Plus (500 mL)

Seachem Reef Plus (500 mL)

  • 500 ml

Check Latest Price

Sold By Price
Amazon.com
eBay
BulkReefSupply.com
PetSmart

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 7.6 x 2 x 1.6 inches; 1.12 Pounds
Item Package Dimensions L x W x H 7.68 x 2.36 x 2.28 inches
Item Dimensions LxWxH 7.6 x 2 x 1.6 inches
Target Audience Keyword Fish; all fish

Reviews From Real Customers

saltwateraquarium.com
buyandsell147

2. Seachem Reef Complete – 2 L

Seachem Reef Complete - 2 L

  • 2 L

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Sold By Price
Amazon.com
eBay – saltwateraq
AquaCave.com
SaltwaterAquarium.com

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 3.25 x 5.75 x 9.5 inches; 5.01 Pounds
Country of Origin USA
Item Package Dimensions L x W x H 9.7 x 4.6 x 4.5 inches
Item Dimensions LxWxH 3.25 x 5.75 x 9.5 inches

Reviews From Real Customers

Vincent S.
tommyz44
bigalspets.com

3. Red Sea Reef Foundation A (Ca/Sr) 500ml

Red Sea Reef Foundation A (Ca/Sr) 500ml

  • 500 ml

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Sold By Price
Amazon.com – Seller
eBay
BulkReefSupply.com
DrugSuppyStore.com

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 3.15 x 7.87 x 3.15 inches; 1.7 Pounds
Item Package Dimensions L x W x H 8.5 x 7.91 x 3.03 inches
Item Dimensions LxWxH 3.15 x 7.87 x 3.15 inches
Target Audience Keyword Dogs, Fish

Reviews From Real Customers

Reviewed by Aquacadabra customer
Mr.Salty

4. Seachem Laboratories Reef Iodide – 8.5 oz bottle

Seachem Laboratories Reef Iodide - 8.5 oz bottle

  • 250 ml

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Sold By Price
Amazon
eBay
Walmart – AlotOfHome
BulkReefSupply.com

Product Details

Specifications

Details
Primary Brand Seachem
Volume 8.5 FZ

Reviews From Real Customers

Tigerthunder
Reviewed by Swell UK customer

5. Reef Calcium (250 mL)

Reef Calcium (250 mL)

  • Increases the bioavailability of the calcium.
  • Provides a rich source of metabolic energy to help maintain peak coral growth.
  • Prevents calcium precipitation/alkalinity depletion.
  • Add 1 capful (5 mL) per 80 L (20 gallons) twice a week.
  • You can increase the amount or frequency based on growth response but do not exceed 3 capfuls per 80 L (20 gallons) per day.

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Sold By Price
Amazon
eBay
Walmart – Aumbaram LLC
Petco.com

Product Details

Specifications

Details
Intended Pet Type Fish
State of Readiness Ingredient
Pet Lifestage All Ages
Pets subtype Pet Treats
Net weight .8 ounces

Reviews From Real Customers

toppidav
jessica.j

6. Seachem Reef Fusion 1 – 1 L

Seachem Reef Fusion 1 - 1 L

  • Provides 100,000 mg per liter of ionized calcium.
  • Restores and maintains the alkalinity of the water.
  • The most concentrated two-part system, simple 1:1 ratio.
  • Instructions for use.
  • DO NOT EXCEED A DOSE OF 4 mL IN 25 L PER DAY OF EACH PRODUCT.

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Sold By Price
Amazon
PetSmart
SaltwaterAquarium.com
marineandreef.com

Product Details

Reviews From Real Customers

Coralproreefer
CrippleReefer
JC Reef

7. ATI Elements Calcium Supplement for Reef Aquarium 1000ml

ATI Elements Calcium Supplement for Reef Aquarium 1000ml

  • ATI Calcium 1000 ml is required with the construction of the coral skeleton.
  • Calcium carbonate is required with the construction of the coral skeleton. Even more important is its function in the metabolism of organisms.
  • 10 ml of the supplement increases the calcium concentration of 100 litres to 20 mg/l.
  • Free of EDTA or other chelating agents accumulative.

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Sold By Price
Amazon
eBay – shopena
BulkReefSupply.com
Premium Aquatics

Product Details

Specifications

Details
Additive Type Calcium

Reviews From Real Customers

lilacgirlviking
lukasz.dytfeld2012
zoanthus.fr

8. Seachem Reef Fusion 1 – 500 ml

Seachem Reef Fusion 1 - 500 ml

  • Helps maintain the critical levels of calcium for healthy coral growth
  • Provides biologically appropriate levels of other elements & trace minerals
  • Specifically designed to be used with Seachem Reef Fusion 2

Check Latest Price

Sold By Price
Amazon
eBay
Petco.com
SaltwaterAquarium.com

Product Details

Specifications

Details
Country of Origin USA
Item Package Dimensions L x W x H 7.5 x 2.5 x 2.5 inches
Item Dimensions LxWxH 7.6 x 2 x 1.5 inches
Target Audience Keyword Fish
Age Range Description All

9. Seachem Reef Fusion 2 – 500 ml

Seachem Reef Fusion 2 - 500 ml

  • 500 ml

Check Latest Price

Sold By Price
Amazon
eBay
Petco.com
SaltwaterAquarium.com

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 7.6 x 2 x 1.5 inches; 1 Pounds
Country of Origin USA
Item Package Dimensions L x W x H 7.48 x 2.36 x 2.32 inches
Item Dimensions LxWxH 7.6 x 2 x 1.5 inches

10. Brightwell Reef Code A (Calcium) 1L

Brightwell Reef Code A (Calcium) 1L

Check Latest Price

Sold By Price
Amazon
eBay – sportingoutpost
ASAP Aquarium

Product Details

Reviews From Real Customers

Aquachristik

11. Brightwell Aquatics Strontion Reef Supplements – 17 fl oz bottle

Brightwell Aquatics Strontion Reef Supplements - 17 fl oz bottle

  • Highly concentrated ionic strontium solution
  • Contains no unwanted organic material
  • Provides invertebrates, clams and other reef-building creatures an essential component to aragonite construction

Check Latest Price

Sold By Price
Amazon
eBay
BulkReefSupply.com
marineandreef.com

Product Details

Specifications

Details
Additive Type Strontium

Reviews From Real Customers

Dr. Zoidburg
J.
R.H.

12. PolypLab RA One – 500 ml

PolypLab RA One - 500 ml

  • 500 ml

Check Latest Price

Sold By Price
Amazon
eBay
Bonanza – Neptunes Aquariums
DrugSuppyStore.com

Product Details

Specifications

Details
Product Dimensions 2.5 x 2.5 x 8.0 inches

Reviews From Real Customers

Grant
C B.
jonathaphillip-17

13. First Defense Reef 16oz

First Defense Reef 16oz

  • 16 oz

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Sold By Price
Amazon
Chewy.com
SaltwaterAquarium.com
AquaCave.com

Product Details

Specifications

Details
Aquarium Type Saltwater
Fish Type Marine Fish, Marine Invertebrate
Product Form Liquid

Reviews From Real Customers

Russell G
alanjamesblair

14. Reef Builder 600g – Seachem

Reef Builder 600g - Seachem

  • 600 g

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Sold By Price
Amazon
eBay
SaltwaterAquarium.com
PetMountain.com

Product Details

Specifications

Details
Assembled Product Dimensions (L x W x H) 3.00 x 3.00 x 6.25 Inches

Reviews From Real Customers

marine22peter

15. Seachem Reef Advantage Magnesium

Seachem Reef Advantage Magnesium

  • 300 g

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Sold By Price
Amazon
eBay
Walmart
PetMountain.com

Product Details

Specifications

Details
Assembled Product Dimensions (L x W x H) 2.50 x 2.50 x 5.00 Inches

Reviews From Real Customers

Jasraj A.
robalong01

16. Seachem Reef Strontium 4L/1 Gal

Seachem Reef Strontium 4L/1 Gal

  • Raises strontium levels in reef aquariums
  • Intended to restore and maintain strontium to levels found in natural seawater without affecting pH
  • Strontium is utilized in the same manner as calcium and holds a similar importance in maintaining a vigorous level of growth
  • 250 milliliters treats 1000 US gallons

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Sold By Price
Amazon
eBay – keiyone-84

Product Details

Specifications

Details
Product Dimensions 4.5 x 6.88 x 11.5 inches

Reviews From Real Customers

kazi-9263
Raju M.

17. Red Sea Reef Foundation A (Ca/Sr) 1kg

Red Sea Reef Foundation A (Ca/Sr) 1kg

  • Key Benefits.
  • This Product Is Easy To Use.
  • This Product Adds A Great Value.
  • This Product Is Manufactured In Israel.

Check Latest Price

Sold By Price
Amazon
eBay
BulkReefSupply.com
SaltwaterAquarium.com

Product Details

Specifications

Details
Top Quality Products Trusted name brands
Best Value Selling at best possible price
Aquarium Type Average daily usage

18. Red Sea Reef Foundation B (ALK) 1kg

Red Sea Reef Foundation B (ALK) 1kg

  • Red Sea Reef Foundation B.
  • Calcium, magnesium, strontium and carbonate are the basic foundation elements of coral skeletons.
  • All of these elements need to be available in balanced proportions for coral health and growth.
  • Carbonate & buffer complex for balanced formation of Coral Skeleton.
  • Size :500 ml Liquid & 1 KG Powder.

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Amazon
eBay
Walmart – Kwik Retail LLC
BulkReefSupply.com

Product Details

Specifications

Details
Aquarium Type Average daily usage
Mixed Reef 9ml
SPS Frag 18ml
SPS Dominant 12ml
Ultra Low nutrient SPS 6ml

Reviews From Real Customers

Dale S
newreef

19. Seachem Reef Carbonate – 250 ml

Seachem Reef Carbonate - 250 ml

  • 250 ml

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Sold By Price
Amazon
eBay
SaltwaterAquarium.com
PetMountain.com

Product Details

Specifications

Details
Assembled Product Dimensions (L x W x H) 2.00 x 2.00 x 6.50 Inches

Reviews From Real Customers

kmarshall321
Jacqueline D.

20. Triton Core7 Reef Supplements Bulk 4L Set

Triton Core7 Reef Supplements Bulk 4L Set

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BulkReefSupply.com
SaltwaterAquarium.com
Premium Aquatics

Product Details

Reviews From Real Customers

phil w
Pixel Reef
Michael Gayle

Conclusion

There are a few things to keep in mind when dosing supplements in a reef tank. First, it is important to understand what the supplements do and how they work. Second, it is important to dose the supplements correctly in order to avoid harming the reef tank inhabitants.

And finally, it is important to be aware of the potential for unwanted side effects when dosing supplements.

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