1-888-9-WEBPETS
(1-888-993-2738)
Certified Seal
Dogs Cats Fish Birds Reptiles Small Pets Pond

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.

Grid List

Set Ascending Direction

Items 41-50 of 107

per page
  1. 3
  2. 4
  3. 5
  4. 6
  5. 7
  1. Kent Marine Liquid Calcium 64 oz.

    Kent Marine Liquid Calcium 64 oz.

    Be First to Review

    Use the Kent Marine Liquid Calcium 64oz from Pet Store to achieve the appropriate calcium level in your aquarium water. Calcium is essential to corals, snails, clams, and other water animals in making them healthy and to help th...
    ONLY
    $29.99
  2. Kent Marine Coral-Vite 16 oz.

    Kent Marine Coral-Vite 16 oz.

    Be First to Review

    Nowadays, it seems that the focus when it comes to aquatic life is mainly on the fish. However, to ensure that you have a strong and growing marine livestock, you should give attention to your corals and shells, among many reef ...
    ONLY
    $19.26
  3. Kent Marine Essential Elements 8 oz.

    Kent Marine Essential Elements 8 oz.

    Description: Kent Marine Essential Elements replaces biologically important trace minerals which are removed by marine fish and invertebrates, and removed through protein skimming, ozone, and especially carbon filtration. Design...
    ONLY
    $6.80
  4. Kent Marine Essential Elements 64 oz.

    Kent Marine Essential Elements 64 oz.

    Be First to Review

    A natural and healthy marine environment is found, of course, in the sea. Saltwater is full of the important minerals and elements fish and corals need for their survival. However, the tap water used for aquariums is so unlike sal...
    ONLY
    $31.99
  5. Kent Marine Zoe Marine Vitamin 8 oz.

    Kent Marine Zoe Marine Vitamin 8 oz.

    Be First to Review

    Looking for the practical food supplement for your aquatic pets' daily diet? Use the Kent Marine Zoe Marine Vitamin 8 oz from Pet Store to provide your pets all the basic nutrients it needs. Made for marine animals and plants, t...
    ONLY
    $13.99
  6. Kent Marine Tech I 16 oz.

    Kent Marine Tech I 16 oz.

    Be First to Review

    Description: Kent Marine Tech I is the most significant breakthrough in marine additive technology in the last five years! Although present in salt mixes, iodine is rapidly used up in the system, and removed through protein skim...
    ONLY
    $11.77
  7. Kent Marine Turbo Calcium 800 g (1 Qt)

    Kent Marine Turbo Calcium 800 g (1 Qt)

    Be First to Review

    Do you need calcium supplements for your corals and other hard-shelled marine pets? If you want a dry calcium source that will immediately raise the calcium levels for your aquatic creatures to dig in, you must have Kent Marine Tu...
    ONLY
    $20.99
  8. Kent Marine Pro Clear Marine Clarifier 8 oz.

    Kent Marine Pro Clear Marine Clarifier 8 oz.

    Be First to Review

    Description: Kent Pro Clear Marine produces and maintains crystal clear aquarium water without affecting pH. Whereas competing products may clog the fishes gills, suffocating them, and cause invertebrates to close up, Kent Pro C...
    ONLY
    $6.28
  9. Kent Marine Micro-Vert 8 oz.

    Kent Marine Micro-Vert 8 oz.

    Description: Kent Micro Vert contains a nutritionally balanced diet for corals, sponges, anemones, gorgonians, feather dusters, clams and other fine filter feeders. It is rich in vitamins and natural minerals from spirulina and ...
    ONLY
    $7.49
  10. Kent Marine Tech M 16 oz.

    Kent Marine Tech M 16 oz.

    Description: Tech M Magnesium supplement is a ionically balanced product which will safely raise the magnesium level in any marine system without upsetting the ionic balance of the system. Tech M is very concentrated, containing...
    ONLY
    $9.08

Grid List

Set Ascending Direction

Items 41-50 of 107

per page
  1. 3
  2. 4
  3. 5
  4. 6
  5. 7