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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. Aquarium Pharmaceuticals Accu-Clear, 8oz

    Aquarium Pharmaceuticals Accu-Clear

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    Do you need an effective solution to help you maintain clear aquarium water all the time? Use the Aquarium Pharmaceuticals Accu-Clear 8oz from Pet Store today. This solution is an efficient way of removing dirt particles in your...
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    $2.88
  2. Aquarium Pharmaceuticals Accu-Clear, 8oz

    Aquarium Pharmaceuticals Accu-Clear, 8oz

    Quickly clears cloudy aquarium water, eliminating clouds caused by dirt. Clumps tiny particles, causing them to fall to the bottom or collect in the filter. Makes any filter work more efficiently to create crystal-clear water fast...
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    $5.99
  3. Aquarium Pharmaceuticals Ammo-Lock 16oz

    Aquarium Pharmaceuticals Ammo-Lock

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    A patented water conditioner that works instantly, in both fresh and saltwater, to detoxify ammonia and remove chlorine and chloramines. Locks up ammonia in a non-toxic form until it can be broken down by the tank's natural biolog...
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    $4.73
  4. Aquarium Pharmaceuticals Ammo-Lock 8oz

    Aquarium Pharmaceuticals Ammo-Lock 8oz

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    A patented water conditioner that works instantly, in both fresh and saltwater, to detoxify ammonia and remove chlorine and chloramines. Locks up ammonia in a non-toxic form until it can be broken down by the tank's natural biolog...
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    $4.73
  5. Aquarium Pharmaceuticals Stress Coat Marine 8 oz

    Aquarium Pharmaceuticals Stress Coat Marine 8 oz

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    Fish & Tap Water Conditioner that removes chlorine, chloramines and ammonia from tap water in a Marine tank. Stress Coat® Marine is the only marine water conditioner with the healing power of aloe vera. Developed for use with a pr...
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    $4.30
  6. Aquarium Pharmaceuticals Algae Destroyer Advanced Liquid 16oz

    Aquarium Pharmaceuticals Algae Destroyer Advanced Liquid

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    One of the main motivations people have in getting an aquarium is to see a really nice view of the aquatic environment where fishes are swimming contentedly; the light is glimmering off the top and penetrating to the bottom where ...
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    $3.69
  7. Aquarium Pharmaceuticals Algae Destroyer Advanced Liquid 8oz

    Aquarium Pharmaceuticals Algae Destroyer Advanced Liquid 8oz

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    Algae growth, in moderation, is normal and even healthy for your aquarium. Many types of algae serve as natural food sources for many species of fish, so generally, it's fine to have them present in your tank. But algae in high nu...
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    $6.88
  8. Aquarium Pharmaceuticals Stress Zyme 8oz

    Aquarium Pharmaceuticals Stress Zyme

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    The Aquarium Pharmaceuticals Stress Zyme 8oz from Pet Store is a wonderful solution to smelly and dirty aquarium water. This amazing product helps a lot in maintaining a clean marine environment. It has more than 300 million goo...
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    $7.49
  9. Aquarium Pharmaceuticals Stress Zyme 8oz

    Aquarium Pharmaceuticals Stress Zyme 8oz

    Improves the development of the biological filter and helps clean a dirty aquarium. Contains over 300 million live bacteria per teaspoonful. Breaks down organic compounds that cause dangerous conditions such as ammonia and nitrite...
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    $7.49
  10. Aquarium Pharmaceuticals API Quick Start - 8 oz

    Aquarium Pharmaceuticals API Quick Start

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    In a new aquarium, harmful ammonia and nitrite build up from fish waste, often resulting in fish loss. The unique, patented nitrifying bacteria in API Quick Start are scientifically proven to quickly consume ammonia and nitrite to...
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    $8.99

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