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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 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
  2. 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
  3. 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
  4. 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...
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    $14.49
  5. Caribsea ReefCal Ionic Calcium Solution 16oz

    Caribsea ReefCal Ionic Calcium Solution 16oz

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    Caribsea ReefCal ReefCal is a 100,000 ppm ionic calcium solution. ReefCal will raise calcium levels by just over 5 ppm per capful (5 ml) per 25 gallons of water. Use a good quality test kit to moniter dissolved calcium levels i...
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    $15.68
  6. Caribsea Bio Magnet Clarifier 8oz

    Caribsea Bio Magnet Clarifier 8oz

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    Cloudy aquarium water is caused by fine suspended particles such as algae, silt, and bacteria. These particles usually carry a negative charge as does most filter media. The filter media, therefore, repels these particles, and wat...
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    $5.81
  7. 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
  8. CaribSea Purple Up Coralline Algae Accelerator 8oz

    CaribSea Purple Up Coralline Algae Accelerator 8oz

    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...
    ONLY
    $11.99
  9. 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...
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    $11.99
  10. 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

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