Best Reef Aquarium Supplements

Nothing quite compares to the beauty of a thriving reef tank. From colorful corals and invertebrates to beautiful saltwater fish, your reef tank is a thing you should be proud to cultivate. Setting up a reef tank can be a challenge but once you’ve cleared that hurdle, the real work begins – the work of maintaining your reef tank. Read on to learn some simple tips for maintaining a healthy reef tank and to see our top 10 picks for the best reef aquarium supplements to help you do it.

If you want your aquarium fish to be happy and healthy, you need to maintain ideal conditions in your tank. Different species of fish have different requirements, so be sure to research the inhabitants you plan to keep in your tank, so you know what conditions you need to create. Here are our top 10 picks for the best supplements to help you maintain ideal conditions in your reef tank:

Dr. Tim’s Aquatics Natural Aquarium Cleaner  

This product is ideal for reef and nano aquariums to help prevent new tank syndrome. It contains 100% natural nitrifiers which start working instantly to remove ammonia and nitrate that can be toxic for reef aquarium inhabitants.

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Kent Marine Concentrated Liquid Calcium

Corals require a certain level of calcium in the tank water in order to sustain their growth and those calcium levels need to be replenished over time. This marine concentrated liquid calcium supplement comes in an 8-, 16-, or 64-ounce bottle and it is easy to use. It is very bio-available, and it contains no EDTA.

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Kent Marine Coral Accel Growth Stimulator

Another supplement you might consider to boost coral growth is this hard and soft coral growth stimulator. It provides complex proteins to give your corals a natural source of amino acids and also contains rich marine lipids for optimal growth.

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Kent Marine Strontium and Molybdenum Supplement

Strontium is a major trace element similar to calcium in its benefits within the reef tank environment – it helps corals develop strong skeletons. This strontium and molybdenum supplement provides the necessary elements for strong coral growth in both soft and hard corals.

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Red Sea Aquarium Supplement

This all-purpose reef tank supplement duo is easy to use and very affordable. It contains an organic complex of dissolved and suspended energy in one bottle and the other contains amino acids and vitamins needed for coral growth and metabolism.

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Seachem Reef Complete

This supplement contains a liquid ionic calcium source, making it essential for reef tanks where coral growth needs to be supported. It contains an optimized blend of ionic calcium to restore and maintain ideal calcium levels for soft and hard corals.

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Seachem Reef Trace Elements

Over time, the inhabitants in your reef tank will deplete the trace minerals in your tank water. This reef supplement makes it easy to restore those trace elements in a single dose of concentrated vitamins and amino acids.

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Kent Marine Essential Elements

This supplement helps replace biologically important trace elements as well, making it ideal for both marine and reef aquariums.

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Kent Marine Aqueon Starter Kit

If you’re looking for a simple way to get your reef tank started on the right foot, this reef starter kit is the way to go. It contains iodine, strontium & molybdenum, and liquid calcium supplements to make your reef tank ideal for coral growth.

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Microbe Lift All-in-One Master Supplement

Another all-in-one starter kit for reef tanks, this supplement treats up to 1,200 gallons and it is a convenient way to dose all of your marine or reef supplements with a single application.

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Simple Tips for Maintaining a Reef Tank

Many aquarium hobbyists will agree that saltwater tanks are more challenging to keep than freshwater tanks. Not only do you need to worry about maintaining the proper salinity, but there are other subtle aspects of water chemistry you need to keep an eye on, depending on your tank inhabitants. Of all the saltwater aquarium environments, reef tanks are the most challenging.

Here are some simple tips to help you maintain your reef aquarium:

  • Test your tank water weekly. The quickest way to know whether conditions in your tank are ideal is to test your tank water – you should test for pH and alkalinity at least once a week.
  • Keep an eye on your calcium levels. Many reef aquariums incorporate live corals which means that they’ll be sucking calcium from your tank water. Check your calcium levels weekly and supplement as needed to maintain the ideal concentration in your tank water.
  • Check your ammonia and nitrate levels. As your aquarium fish eat and grow, they will excrete waste which breaks down into ammonia. Ammonia is toxic for fish and it eventually converts into nitrite then nitrate with the help of beneficial bacteria. None of these things are good for your fish, so check your levels often.
  • Test your phosphate levels monthly. All living things require phosphorus to survive but excess phosphate in your tank can inhibit coral growth. Test at least once a month to make sure your phosphate levels are in the proper range.
  • Keep up with regular water changes. Water changes are required to remove waste products and to replace trace elements. Plan to perform a small water change at least every two weeks, up to 20% of your tank volume.

Maintaining a thriving reef aquarium can be quite the challenge. With the right supplements, however, you can keep the conditions in your tank ideal for your tank inhabitants. Take what you’ve learned here and give some of our recommended supplements a try.


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