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Additives & Supplements

Aquarium Supplies

Fish Additives & Supplements

We carry a wide variety of additives produced by the most respected companies serving the aquarium hobby, such as Kent Marine, E.S.V., Seachem and Two Little Fishies. 2-part Calcium and Alkalinity Supplements are popular additives among reef keepers since calcium and alkalinity tend to deplete quickly in a reef aquarium.

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  1. Caribsea BioMagnet Clarifier 16 oz

    Caribsea BioMagnet Clarifier 16 oz

    The Caribsea Bio-magnet Clarifier from Pet Store is a filter system designed for cleaning water in the aquarium. Basically, unwanted particles, bacteria, algae, and silt can accumulate within the aquarium, making its water cloud...
    ONLY
    $14.49
  2. Caribsea AragaMilk Liquid Aragonite Calcium Supplement 8oz

    Caribsea AragaMilk Liquid Aragonite Calcium Supplement 8oz

    AragaMILK™ Ideal for African cichlids, livebearers, and marine aquariums of all types! The perfect alkalinity booster because...aragaMILK™ has a full pound of buffer in every 16 fluid ounce bottle. This buffer comes in two form...
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    $11.99
  3. CaribSea Ammobuster Extreme 1gal

    CaribSea Ammobuster Extreme 1gal

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    One step water conditioner, eliminates ammonia, chlorine, chloramine, detoxes heavy metals, even copper, replaces slime coat, boosts alkalinity, and neutralizes nitrite. 1 gallon
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    $56.99
  4. CaribSea Purple Up Coralline Algae Accelerator 1 Gallon

    CaribSea Purple Up Coralline Algae Accelerator 1 Gallon

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    Multiply the growth of beneficial algae in your tank with the use of the Caribsea Purple Up Coralline Algae Accelerator from Pet Store . This formula is has a unique way of increasing the growth of coralline algae. The Caribse...
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    $89.98
  5. CaribSea Purple Up Coralline Algae Accelerator 8oz

    CaribSea Purple Up Coralline Algae Accelerator

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    Use the Caribsea Purple Up Coralline Algae Accelerator 8oz from Pet Store to keep your coralline algae healthy all the time. Coralline algae are essential to the natural balance of reef aquariums. Some fish and other water creat...
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  6. CaribSea D-Chlor-It Max Water Conditioner 16oz

    CaribSea D-Chlor-It Max Water Conditioner 16oz

    CaribSea D-Chlor-It Max Water Conditioner 16oz D-Chlor-It™ is your one step water conditioner that does all you need to turn ordinary tap water into aquariumsafe water. D-Chlor-It™ not only neutralizes chlorine and chloramines,...
    ON SALE

    Was: $11.99

    $9.59

  7. Caribsea Phos-Buster Pro 8oz

    Caribsea Phos Buster Pro

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    Phos-Buster™ Pro Phos-Buster™ Pro’s unique patent pending formula removes dissolved phosphates in minutes instead of days. Safe for all reef tanks, saltwater, and freshwater aquariums of all sorts. Each 8 oz. bottle removes at ...
    FROM ONLY
    $25.49
  8. CaribSea Purple Up Coralline Algae Accelerator 16oz

    CaribSea Purple Up Coralline Algae Accelerator 16oz

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    Pet Product News Editor`s Choice Awards Winner as One of the Best New Products of 2005 Purple Up has a unique dual method approach to coralline algae acceleration: Ionic calcium—Immediately raises dissolved calcium levels in...
  9. Caribsea BufferPlus 16 oz

    Caribsea BufferPlus 16 oz

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    Caribsea BufferPlus Buffer Plus™ Still using the same old buffers? CaribSea`s Buffer Plus™ is the easy way to buffer and re-mineralize marine and reef aquariums. With both bicarbonate and time release aragonite buffer, Buffer P...
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    $18.49
  10. Caribsea Phos-Buster Pro 8oz

    Caribsea Phos-Buster Pro 8oz

    Phos-Buster™ Pro Phos-Buster™ Pro’s unique patent pending formula removes dissolved phosphates in minutes instead of days. Safe for all reef tanks, saltwater, and freshwater aquariums of all sorts. Each 8 oz. bottle removes at ...
    ONLY
    $25.49

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