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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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451 - 287 of 287
Seachem Laboratories Clarity - 250mL

Seachem Laboratories Clarity - 250mL

Seachem Clarity is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Clarity is the only clarifier on the market that does it all! Clarity wi...

$7.49
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
Tetra Correct Ph 8 Tabs

Tetra Correct Ph 8 Tabs

Correct pH 7.0: Maintains Neutral pH in Community Aquariums. Changes in pH can be caused by the breakdown of waste or local tap water with low pH or low alkalinity. Correct pH maintains recommended levels. Reduces fish stress due...

$9.69
Kordon Novaqua Plus 5 Gallon

Kordon Novaqua Plus 5 Gallon

Provides a Protective Skin Slime Contains Organic Immune Health Aids Adds Electrolytes and Vitamins Provides an Organic Virus Inhibitor Removes Chlorine & Toxic Metals Breaks Down Chloramines A single dose of NovAqua Plus will hel...

$118.99
NYOS BIO BOOSTER Biological Metabolism Accelerator - 250 mL

NYOS BIO BOOSTER Biological Metabolism Accelerator - 250 mL

NYOS® BIO BOOSTER is a well-formulated Nutrient solution with more than 90 ingredients Reduces nitrate and phosphate Provides biological balance Contains vitamins and amino acids Better coral colors Technical Details ...

$35.99
API Stress Coat 4 Oz

API Stress Coat 4 Oz

Acts as a liquid bandage to prevent the loss of essential electroytes; protects damaged tissue against disease-causing organisms. Helps heal torn fins & skin wounds. Use when setting up aquarium or changing water. Contains aloe ve...

$9.99
NYOS PURE IODINE Concentrated Iodine Supplement - 50 mL

NYOS PURE IODINE Concentrated Iodine Supplement - 50 mL

NYOS® PURE IODINE is available immediately and is the maximum iodine supply in reef aquariums Boost to your coral`s color Very easily available Developed in long term studies Contains the purest raw materials Prevents defi...

$19.99
Biosafe Systems Greenclean Tabs 3 Lb

Biosafe Systems Greenclean Tabs 3 Lb

Same formulation as Green Clean Granular Algaecide but compressed into tablets for easy application use. No measuring required. Slow release maintenance application. Non-harmful to fish, aquatic plants and pets. Use 1 tablet per 2...

$34.82
Biosafe Systems Greenclean Blue Colorant 16 Oz

Biosafe Systems Greenclean Blue Colorant 16 Oz

Prevents the UV rays from the sun from penetrating through water, thereby preventing photosynthesis of all types of excessive plant growth. 16 oz

$20.76
NYOS ACTIVE IODINE Supplement - 250 mL

NYOS ACTIVE IODINE Supplement - 250 mL

NYOS® ACTIVE IODINE particularly emphasizes the blue hue of your corals Boost to your coral´s colour Very easily available Developed in long term studies Contains the purest raw materials Prevents deficiency symptoms T...

$19.99
NYOS ACTIVE STRONTIUM Trace Elements Supplement - 250 mL

NYOS ACTIVE STRONTIUM Trace Elements Supplement - 250 mL

NYOS® ACTIVE STRONTIUM solidifies the crystalline skeleton structure of your corals Boost to your coral´s growth Very easily available Developed in long term studies Contains the purest raw materials Prevents deficiency sy...

$19.99
NYOS ACTIVE ELEMENTS Trace Elements Supplement - 250 mL

NYOS ACTIVE ELEMENTS Trace Elements Supplement - 250 mL

NYOS® ACTIVE ELEMENTS strengthen the red, violet, and green hues of your corals. Boost to your coral`s color Very easily available Developed in long term studies Contains the purest raw materials Prevents deficiency sympto...

$19.99
451 - 287 of 287
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