Online Discount Pet Supplies & Toys For All Animals
1-714-361-6142
Buy today, ships today
Free shipping on orders over $75
40,000 pet products
Buy today,
ships today
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 2 pm EST (M-F) ship the same day! Learn More
FREE Shipping on
Orders Over $75
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $75 ship FREE. Learn More
40,000 Pet Products
We carry over 40,000 pet-related products for every pet in your home. We stock all the popular products you’ll find in your local pet store, but sell them for less! See Specials
0
Your cart is currently empty.
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.
Show: per page
Grid View Grid List View List
Sort by:
Tetra Water Clarifier

Tetra Water Clarifier

Clear cloudy or hazy aquarium water in just a few hours with TetraAqua Water Clarifier.  Safe for all freshwater aquariums, TetraAqua Water Clarifier is phosphate free.  It will not affect biofiltration, pH or any other...

From $9.99
Tetra Aqua Safe Water Conditioner

Tetra Aqua Safe Water Conditioner

AquaSafe conditions tap water safe for your fish by neutralizing chlorine and heavy metals present in municipal water supplies.  AquaSafe also neutralizes chloramines by breaking down the bond between chlorine and ammonia wh...

From $9.69
Seachem Laboratories Malawi And Victoria Buffer

Seachem Laboratories Malawi And Victoria Buffer

Seachem?s Malawi/Victoria Buffer? is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness, buffer capacity, and pH. It is formulated to maintain a pH of 7.8?8.4. For optimum re...

From $11.69
Aqueon Tap Water Conditioner

Aqueon Tap Water Conditioner

Neutralizes the chlorine typically found in tap water, making it safe for fish. Helps to reduce the stress on fish as they become familiar with their new environment. Aids in restoring the natural slime coat to skin and gills, whi...

From $8.99
Seachem Laboratories Stability

Seachem Laboratories Stability

SeaChem Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". Stability is formulated specifically for th...

From $9.69
Kordon Amquel Plus +®  Additive

Kordon Amquel Plus +® Additive

Keep your aquarium clean and fresh from all kinds of impurities by pouring a constant amount of the Kordon Amquel Plus +® Additive from Pet Store . This product comes in a sixteen-ounce pack that you can use sparingly, depending ...

From $8.99
Kordon Aquarium NovAqua Plus® Water Conditioner

Kordon Aquarium NovAqua Plus® Water Conditioner

When you hear the word ""conditioner,"" the first thing you'll most probably think of is hair. After all, conditioners are for hair (or fur, for animals) ... right? well, no. Hair and fur aren't the only things that need condition...

From $7.99
API Accu-Clear

API Accu-Clear

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...

From $6.60
API Ammo-Lock

API Ammo-Lock

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...

From $9.89
Tetra Safestart Freshwater

Tetra Safestart Freshwater

Immediately add fish to your new freshwater aquarium with Tetra SafeStart. Live nitrifying bacteria work instantly to remove ammonia and nitrite. Patented formula helps to seed your aquarium filter with nitra-digesting bacteria. S...

From $11.69
Seachem Laboratories Tanganyika Buffer

Seachem Laboratories Tanganyika Buffer

Seachem?s Tanganyika Buffer? is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness, buffer capacity, and pH. It is formulated to maintain a pH of 9.0?9.4. For optimum replica...

From $11.69
Aqueon Water Clarifiers

Aqueon Water Clarifiers

Simple to understand and apply, these products will help maintain the healthiest environment for your aquatic pets. Aqueon Water Clarifier works by clinging to the suspended dirt particles that cause the water to appear cloudy or ...

From $9.99
API Proper pH 7.5

API Proper pH 7.5

Condition your aquarium or pond water regularly with the Aquarium Pharmaceuticals Proper Ph 7.5 from Pet Store . This formula enables you to adjust the pH level and stabilize it to the desired level. It also neutralizes harmful s...

$12.79
Kordon Amquel 16 oz.

Kordon Amquel 16 oz.

Removes ammonia, chloramines, chlorine, and many other organic toxins. Completely non-toxic, contains no formaldehyde, and will not effect dissolved oxygen levels. Novaqua can be used with it to fully condition water. One teaspoon...

$13.99
API Proper pH 8.2

API Proper pH 8.2

Easy-to-use, fast dissolving powder that automatically sets and stabilizes pH at 8.2 while neutralizing chlorine and detoxifying heavy metals. For saltwater, brackish and African cichlid aquariums. Contains aloe vera and electroly...

$12.99
Kent Marine Pro Clear Freshwater 8 oz.

Kent Marine Pro Clear Freshwater 8 oz.

Description: Kent Pro Clear Freshwater produces and maintains crystal clear aquarium water without affecting pH. Whereas competing products may clog the fishes gills, suffocating them, Kent Pro Clear uses a blend of high tech po...

$12.99
Brightwell Aquatics Kalk+2 - Advanced Kalkwasser Supplement 450g / 15.9oz

Brightwell Aquatics Kalk+2 - Advanced Kalkwasser Supplement 450g / 15.9oz

Have you ever thought about decorating the interior of your tank with an equipment, which will not only help improve the overall appearance of your fishes’ home, but will clean it thoroughly, as well? If this is so, then you may w...

$14.99
Tetra Instant Ocean Biospira Saltwater 100 mL

Tetra Instant Ocean Biospira Saltwater 100 mL

Patented nitrifying bacteria make marine aquariums fish-safe instantly. Instantly make your marine aquarium fish-safe with BIO-Spira. Natural bacteria additive accelerates the establishment of the bio-filter by providing a patente...

$13.99
Add to Cart or Notify Me
This item is temporarily unavailable but will be back in stock soon.


Item #
Price:
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.
Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

Notify Me
Just enter your email address below and we'll let you know when the product you are looking for becomes available!


Item Code:
Price:
Your Email:
Terms & Conditions | Privacy Policy © 1999-2015 PetStore.com. All rights reserved.