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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 AragaMilk Liquid Aragonite Calcium Supplement 8oz

    Caribsea AragaMilk Liquid Aragonite Calcium Supplement

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    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...
    FROM ONLY
    $11.99
  2. CaribSea AragaMIGHT Calcium Supplement

    CaribSea AragaMIGHT Calcium Supplement

    If you’re the type of aquarist who loves taking care of corals, then you may need the Caribsea Aragamight Calcium Supplement from Pet Store for all of your maintenance purposes. The main ingredient that is used to formulate this...
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    $19.49
  3. 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
  4. 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...
  5. 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
    $11.99
  6. 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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    $93.99
  7. 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...
    ONLY
    $11.99
  8. 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 ...
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    $25.49
  9. 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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    $11.99
  10. Caribsea AragaMilk Liquid Aragonite Calcium Supplement 16oz

    Caribsea AragaMilk Liquid Aragonite Calcium Supplement 16oz

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    In closed systems, carbonate is consumed both as a buffer to neutralize organic acids, and combines with calcium for coral and coralline algae growth. The aragonite in aragaMILK supplies calcium and other major and minor trace ele...
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    $14.49

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