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Conditioners & Additives

Shop the LiveAquaria® Conditioners & Additives category for our selection of aquarium water conditioners and additives essential for maintaining ideal water parameters for freshwater and marine aquariums.

Our selection of aquarium water conditioners and additives include fundamental items including chlorine neutralizers, ammonia removers, and beneficial bacterial additives. We also offer a selection of buffers and reef supplements essential to achieving and maintaining ideal water parameters for your marine reef aquarium. You'll also find a selection of liquid plant nutrients great for hobbyists pursuing a freshwater planted aquariums.

80 results
Seachem Prime Water Conditioner Seachem Prime Water Conditioner
(4503)
Starting at $4.19
IN STOCK
API Stress Coat® Plus API Stress Coat® Plus
(4494)
Starting at $7.89
IN STOCK
API Stress Zyme + Water Conditioner API Stress Zyme + Water Conditioner
(4504)
Starting at $43.29
IN STOCK
API Quick Start™ API Quick Start™
(4510)
Starting at $18.19
IN STOCK
API Marine AlgaeFix API Marine AlgaeFix
(4373)
Starting at $14.99
IN STOCK
API Freshwater AlgaeFix API Freshwater AlgaeFix
(4373)
Starting at $7.09
IN STOCK
Vita-Chem Marine Vita-Chem Marine
(4380)
Starting at $34.58
IN STOCK
Vita-Chem Freshwater Vita-Chem Freshwater
(4380)
Starting at $31.50
IN STOCK
General Cure™ General Cure™
(4393)
Starting at $12.29
IN STOCK
Kent Marine Garlic Xtreme Kent Marine Garlic Xtreme
(4384)
Starting at $12.99
IN STOCK
Red Sea Biological Nitrate & Phosphate Reducer Red Sea Biological Nitrate & Phosphate Reducer
(4415)
Starting at $16.99
IN STOCK
Red Sea Reef Foundation A Reef Supplement Red Sea Reef Foundation A Reef Supplement
(4424)
Starting at $15.99
IN STOCK
Red Sea Reef Foundation B Reef Supplement Red Sea Reef Foundation B Reef Supplement
(4468)
Starting at $15.99
IN STOCK
Red Sea Reef Foundation C Reef Supplement Red Sea Reef Foundation C Reef Supplement
(4448)
Starting at $15.99
IN STOCK
Red Sea Coral Colors A Reef Supplement Red Sea Coral Colors A Reef Supplement
(4435)
Starting at $14.99
IN STOCK
Red Sea Coral Colors B Reef Supplement Red Sea Coral Colors B Reef Supplement
(4460)
Starting at $14.99
IN STOCK
Red Sea Coral Colors C Reef Supplement Red Sea Coral Colors C Reef Supplement
(4450)
Starting at $14.99
IN STOCK
Red Sea Coral Colors D Reef Supplement Red Sea Coral Colors D Reef Supplement
(4461)
Starting at $14.99
IN STOCK
Seachem Reef Advantage Magnesium Seachem Reef Advantage Magnesium
(4452)
Starting at $12.85
IN STOCK
On Sale
Drs. Foster & Smith Live Nitrifying Bacteria Drs. Foster & Smith Live Nitrifying Bacteria
(4512)
Starting at $9.74
IN STOCK
On Sale
Drs. Foster & Smith Instant Ammonia Remover Drs. Foster & Smith Instant Ammonia Remover
(4523)
Starting at $8.24
IN STOCK
Drs. Foster & Smith Chlorine Neutralizer Drs. Foster & Smith Chlorine Neutralizer
(4499)
Starting at $7.99
IN STOCK
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