20 Best Small Calcium Reactor [2024]

Are you looking for the best Small Calcium Reactor? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Small Calcium Reactor.

We Recommended:

# Preview Product
1 Kent Marine 00667 Liquid Calcium Reactor, 16-Ounce Bottle Kent Marine 00667 Liquid Calcium Reactor, 16-Ounce Bottle
2 Carib Sea ACS00529 Arm Reactor Coarse Filter Media for Aquarium, 1-Gallon Carib Sea ACS00529 Arm Reactor Coarse Filter Media for Aquarium, 1-Gallon
3 Brightwell Aquatics CoraLazarus - Calcium Media for Marine Reef Aquarium Media Reactors, 5 Kg Brightwell Aquatics CoraLazarus - Calcium Media for Marine Reef Aquarium Media Reactors, 5 Kg
4 Seachem 28665 Large Reef Reactor Seachem 28665 Large Reef Reactor
5 Two Little Fishies Reborn COARSE Aragonite Calcium Reactor Media 8.8LBS Two Little Fishies Reborn COARSE Aragonite Calcium Reactor Media 8.8LBS
6 Viaaqua AC10 Acro-Cal Calcium Reactor Viaaqua AC10 Acro-Cal Calcium Reactor
7 Tunze 5074.000 Calcium Dispenser for Use with 3155 Osmolator Tunze 5074.000 Calcium Dispenser for Use with 3155 Osmolator
8 Two Little Fishies ATLRB4 Reborn Calicium 8.8-Pound Two Little Fishies ATLRB4 Reborn Calicium 8.8-Pound
9 Brightwell Aquatics ABANEOM1000 Neo Magnesium Filter Media for Aquarium, 2.2-Pound, 1000-grams Brightwell Aquatics ABANEOM1000 Neo Magnesium Filter Media for Aquarium, 2.2-Pound, 1000-grams
10 Reef Octopus Beginner OCT-MF300B 2.5 Inch Media Reactor Reef Octopus Beginner OCT-MF300B 2.5 Inch Media Reactor
11 AquaMaxx Fr-s Internal GFO Carbon and Biopellet Filter Media Reactor with Sicce Pump by AquaMaxx AquaMaxx Fr-s Internal GFO Carbon and Biopellet Filter Media Reactor with Sicce Pump by AquaMaxx
12 Lifegard Aquatics R800129 Large Side Flow Turbo Reactor Lifegard Aquatics R800129 Large Side Flow Turbo Reactor
13 Lifegard Aquatics R800128 Medium Side Flow Turbo Reactor Lifegard Aquatics R800128 Medium Side Flow Turbo Reactor
14 INKBIRDPLUS Aquarium CO2 Regulator 12V DC Solenoid With Big Dual Gauges,Bubble Counter With Check... INKBIRDPLUS Aquarium CO2 Regulator 12V DC Solenoid With Big Dual Gauges,Bubble Counter With...
15 Aquarium CO2 Regulator Big Dual Gauge Display with Bubble Counter and Check Valve and Updated 12V DC... Aquarium CO2 Regulator Big Dual Gauge Display with Bubble Counter and Check Valve and Updated 12V...
16 Seachem Reef Calcium 250ml Seachem Reef Calcium 250ml
17 Two Little Fishies ATLPBR150 GFO PhosBan Reactor 150 Two Little Fishies ATLPBR150 GFO PhosBan Reactor 150
18 Reef Octopus Beginner Media Filter 4 Inch Chamber w/pump Reef Octopus Beginner Media Filter 4 Inch Chamber w/pump
19 Aquatop 95GPH Aquarium Media Reactor with pump, 10-75 Gallon Fish Tank Capacity, MR-20 Aquatop 95GPH Aquarium Media Reactor with pump, 10-75 Gallon Fish Tank Capacity, MR-20
20 Viactiv Calcium Plus Vitamin D Supplement Soft Chews, Caramel, 100 Count Viactiv Calcium Plus Vitamin D Supplement Soft Chews, Caramel, 100 Count
Bestseller No. 1
Kent Marine 00667 Liquid Calcium Reactor, 16-Ounce Bottle
  • Provides the same results as costly calcium reactor systems
  • Will raise aquarium concentrations
  • For marine and reef aquariums
  • Not for human consumption
Bestseller No. 2
Carib Sea ACS00529 Arm Reactor Coarse Filter Media for Aquarium, 1-Gallon
  • Product quality and customer service have been our highest priority
  • Manufactured by caribbean
  • Made in United States
Bestseller No. 3
Brightwell Aquatics CoraLazarus - Calcium Media for Marine Reef Aquarium Media Reactors, 5 Kg
  • High-purity natural mineral that may be used in traditional calcium reactors or blended in to pre-existing aquarium substrate to gradually increase...
  • Strong source of calcium, the most abundant cation by percent mass in aragonite, the mineral secreted by reef-building organisms to form skeletal...
  • Through dissolution, provides calcium, magnesium, strontium, potassium, and carbonates. Aids in increasing alkalinity to stabilize pH and encourage...
  • Optimal average particle size for use in media reactors and calcium reactors
  • Free of chloride and sulfate
Bestseller No. 4
Seachem 28665 Large Reef Reactor
  • Coarse, high-purity calcium reactor media
  • Provides calcium, Magnesium, strontium, Potassium, and carbonates
  • 1-3 cm Grain size
  • Made in United States
Bestseller No. 6
Viaaqua AC10 Acro-Cal Calcium Reactor
  • Built in water pump and bleed valve
  • For use in sump or hang on the back
  • For aquariums up to 75 gallons
  • 4" wide x 15" high
  • Carbon dioxide source not included
Bestseller No. 7
Tunze 5074.000 Calcium Dispenser for Use with 3155 Osmolator
  • Stabilizes pH
  • Easy to Use
  • Works with Tunze 3155 and 3152 Automatic Top-off units
Bestseller No. 8
Two Little Fishies ATLRB4 Reborn Calicium 8.8-Pound
  • Country Of Origin : United States
  • The Package Height Of The Product Is 0.02 Inches
  • The Package Length Of The Product Is 0.02 Inches
  • The Package Width Of The Product Is 0.02 Inches
Bestseller No. 9
Brightwell Aquatics ABANEOM1000 Neo Magnesium Filter Media for Aquarium, 2.2-Pound, 1000-grams
  • High-purity, magnesium-rich mineral that may be employed in traditional calcium reactors, or even blended in to pre-existing aquarium substratum, to...
  • Provides magnesium, which helps regulate the balance between calcium and carbonates in aquarium water, and is a component of aragonite, the mineral...
  • Composed of magnesium, calcium, and carbonates.
  • Optimal average particle size for use in media reactors and calcium reactors.
  • Free of chloride and sulfate.
Bestseller No. 11
AquaMaxx Fr-s Internal GFO Carbon and Biopellet Filter Media Reactor with Sicce Pump by AquaMaxx
  • Footprint: 3.4" x 3.2"
  • Chamber Diameter: 2.4" Height: 10"
  • Maximum Capacity: 0.25L (250mL) ~1 Cup
  • Glass thickness: up to 3/8"
  • Pump(included): SICCE Micra or Syncra Nano
Bestseller No. 12
Lifegard Aquatics R800129 Large Side Flow Turbo Reactor
  • High quality, corrosion resistant Ceramic bearings help ensure quiet operation and longer life
  • Brand of lifeguard
  • Manufactured in China
  • Package Dimensions: 21.0" L x 11.0" W x 11.0" H
Bestseller No. 13
Lifegard Aquatics R800128 Medium Side Flow Turbo Reactor
  • High quality, corrosion resistant Ceramic bearings help ensure quiet operation and longer life
  • Brand of lifeguard
  • Manufactured in China
  • Package Dimensions: 15.0" L x 10.0" W x 8.0" H
Bestseller No. 14
INKBIRDPLUS Aquarium CO2 Regulator 12V DC Solenoid With Big Dual Gauges,Bubble Counter With Check...
  • 💭💭【DUAL PRESSURE GAUGES】This aquarium CO2 regulator features 2 pressure gauges, clearly read the regulator Cylinder Pressure and Outlet...
  • 💭💭【HIGH-ACCURATE ADJUSTMENT】There is a high-accurate trimmer valve equipped on the CO2 regulator, an Aquarium-specific needle valve, High...
  • 💭💭【NON-RETURN BUBBLE COUNTER】The bubble counter comes with a check-valve function, which could prevent water from reversing back to the...
  • 💭💭【SAFE & DURABLE】This CO2 regulator comes with a 12V power adapter ensuring safe and stable working performance with no noise, adopts...
  • 💭💭【PROFESSIONAL DESIGNS】A solenoid valve is included, which could deliver gas once connecting a power source. This 12V DC Solenoid CO2...
Bestseller No. 15
Aquarium CO2 Regulator Big Dual Gauge Display with Bubble Counter and Check Valve and Updated 12V DC...
  • Big Dual Gauge Display - 1.6 inch big dual gauge display with clear tick marks and numbers allows you clearly and accurately read the pressure(0-3500...
  • Updated Split-type Solenoid - Newest split-type solenoid dual stage valve for added safety and reliability. Low power consumption solenoid with low...
  • High Precision Structure - This is a great regulator for the aquarium. The built in counter with check valve function on the regulator is adjustable...
  • Strong Compatibility - The CO2 aquarium regulator is compatible with most brands of high density tubing to inject your aquarium with CO2 quickly and...
  • What's in Your Package? - 1 x DoubleSun big dual gauge regulator; 1 x wrench; 1 x hex wrench; 1 x extra seal ring; 1 year warranty. You can get it set...
SaleBestseller No. 16
Seachem Reef Calcium 250ml
  • CONCENTRATED BLEND: Reef Calcium is a concentrated bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium...
  • POLYGLUCONATE COMPLEXACTION: Increases the bioavailability of the calcium, provides a rich source of metabolic energy to help maintain peak coral...
  • ORGANIC CALCIUM: Reef Calcium Reef Calcium utilizes a chained organic calcium rather than an ionic calcium.
  • USE: Reef Calcium may be used alone to maintain calcium but will provide enhanced levels of coral growth when used in conjunction with an ionic...
  • DIRECTIONS: Add 1 capful (5 mL) per 80 L (20 US gallons) twice a week. You can increase the amount or frequency based on growth response but do not...
Bestseller No. 17
Two Little Fishies ATLPBR150 GFO PhosBan Reactor 150
  • Capacity: Use with up to a maximum of 200 grams (385 ml) of PhosBan, or a media height of 5 inches (13 cm)
  • Aquarium size: One reactor for up to 150 gallons (568 Liters). Multiple reactors may be used for larger aquariums.
  • Recommended flow rate: ca. 20 - 30 gal/hr (75 - 115 l/hr) . Too much flow can grind PhosBan
  • Connection for hoses 1/2 inch (12.7 mm) i.d. The inlet and outlet flexible 90° fittings rotate to suit your installation
SaleBestseller No. 19
Aquatop 95GPH Aquarium Media Reactor with pump, 10-75 Gallon Fish Tank Capacity, MR-20
  • EFFICIENT: UP-FLOW FILTRATION MAXIMIZES FILTER MEDIA EFFICIENCY
  • ADJUSTABLE: INCLUDES ADJUSTABLE 95-GPH WATER PUMP WITH SEDIMENT DISCHARGE FILTER
  • COMPLETE: ALL INTAKE AND OUTLET TUBING INCLUDED
  • EASY: EASY TO REMOVE LID WITH O-RING MAKES LOADING A SNAP
  • FLEXIBLE: READY FOR THE MEDIA OF YOUR CHOICE
Bestseller No. 20
Viactiv Calcium Plus Vitamin D Supplement Soft Chews, Caramel, 100 Count
  • Calcium and Vitamin D Supplement Chews: Two Viactiv chews a day provides 100 percent of your daily recommended Calcium plus Vitamin D and Vitamin K,...
  • Bone-Nourishing Nutrients: These delicious chews include 650 mg of bone-building Calcium plus 12.5 mcg of Calcium-absorbing Vitamin D and 40 mcg of...
  • Individually Wrapped: These chews come individually wrapped for take-it-anywhere convenience, to help you get the nutrients you need at home, in the...
  • Benefits of Calcium: Necessary at all stages of life, Calcium helps build peak bone mass in your teen years, provides support for pregnant and...
  • Chews to be Strong: Try all of our supplements, including Calcium with Vitamin D, Calcium with Immune Support, and Digestive Health chews with...

Having trouble finding a great Small Calcium Reactor?

This problem is well understood by us because we have gone through the entire Small Calcium Reactor research process ourselves, which is why we have put together a comprehensive list of the best Small Calcium Reactors available in the market today.

After hours of searching and using all the models on the market, we have found the best Small Calcium Reactor for 2023. See our ranking below!

How Do You Buy The Best Small Calcium Reactor?

Do you get stressed out thinking about shopping for a great Small Calcium Reactor? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Small Calcium Reactor, which is why we have assembled a comprehensive list of the greatest Small Calcium Reactor available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Small Calcium Reactor that you consider buying. Your questions might include the following:

  • Is it worth buying an Small Calcium Reactor?
  • What benefits are there with buying an Small Calcium Reactor?
  • What factors deserve consideration when shopping for an effective Small Calcium Reactor?
  • Why is it crucial to invest in any Small Calcium Reactor, much less the best one?
  • Which Small Calcium Reactor are good in the current market?
  • Where can you find information like this about Small Calcium Reactor?

We’re convinced that you likely have far more questions than just these regarding Small Calcium Reactor, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Small Calcium Reactor, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Small Calcium Reactor. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Small Calcium Reactor buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Small Calcium Reactor currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Small Calcium Reactor has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Small Calcium Reactor?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Small Calcium Reactor.
  5. Customer Ratings: Number ratings grade Small Calcium Reactor objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Small Calcium Reactor.
  7. Product Quality: You don’t always get what you pay for with an Small Calcium Reactor, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Small Calcium Reactor is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Small Calcium Reactor information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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FAQ:

Q: What is the best calcium reactor for reef corals?

A: The VarioS calcium reactor uses the same high-quality components as the skimmer units. Rated for medium to large reef aquarium up to 150 gallons, The VarioS CR140 is capable of supplying densely-stocked corals with plenty of calcium.

Q: What is a calcium reactor for?

A: A calcium reactor is cruise control for your reef tank alkalinity, and some of your calcium too, but regular observation will help keep things working as expected.

Q: What is the difference between the Varios calcium reactor and skimmer?

A: The VarioS calcium reactor uses the same high-quality components as the skimmer units. Rated for medium to large reef aquarium up to 150 gallons, The VarioS CR140 is capable of supplying densely-stocked corals with plenty of calcium. The CR140 has a larger footprint due to its size and external water pump.

Q: What is the best media for a calcium reactor?

A: One of the newest developments in calcium reactors is the availability of a range of reactor media grades. In the early days of calcium reactors users tended to use mostly coarse sand to provide as much media in the reactor with as much surface area for dissolution as possible.