Best Seachem Aquarium Water Treatments in 2026

POWERFUL TREATMENT: Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine.

REMOVER: Seachem Prime immediately and permanently removes chlorine and chloramine, successfully allowing the bio filter to remove ammonia, nitrite, and nitrate while they are detoxified for 48 hours.

DETOXIFIER: Seachem Prime effectively detoxifies ammonia, nitrite, and heavy metals found in the tap water at typical concentration levels, providing a ideal environment for your betta, tetra, or other fish.

Contains one (1) API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle

Makes tap water safe and protects fish with dual-action formula

Removes chemicals from tap water that are harmful to fish

POWERFUL TREATMENT: Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine.

REMOVER: Seachem Prime immediately and permanently removes chlorine and chloramine, successfully allowing the bio filter to remove ammonia, nitrite, and nitrate while they are detoxified for 48 hours.

DETOXIFIER: Seachem Prime effectively detoxifies ammonia, nitrite, and heavy metals found in the tap water at typical concentration levels, providing a safe environment for your betta, tetra, or other fish.

Contains one (1) API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle

Allows instant addition of fish when starting a new aquarium

Reduces compounds harmful to fish when used routinely

Premium slime coat protection

Promotes healing in wounds

Will not coat resins or clog filter

Cichlid specific

Safe and easy to use

Restores necessary trace elements

Highly concentrated

Iron supplement

For planted aquarium

Seachem Alkaline Buffer- Raise pH and Alkalinity (KH) in Freshwater Aquariums

RAISES PH: Alkaline Buffer is a non-phosphate buffer to raise pH and alkalinity (KH). If looking to target a specific pH, use with Seachem’s Acid Buffer

PLANTED AQUARIUM: These buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem

The complete and concentrated conditioner for both fresh and salt water

Removes chlorine Chloramine and ammonia

Converts ammonia into a safe nontoxic form that is readily removed by the tank's Bio Filter

Contains 1- 100ml bottle

Garlic additive and Flavor Enhancer for freshwater and Saltwater: reef and Plant safe

All natural garlic scented odor and Flavor Enhancer for freshwater and Saltwater Fish

FILTRATION: Purigen ranges in color from almost white (cream) to light yellow. Seachem Purigen is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water.

SELECTIVITY: Seachem Purigen is an organic filtration resin that works hard to remove nitrogenous compounds and waste produced by fish, corals, and even plants, making your water crystal clear.

CAPACITY: Being both spherical and macroreticular, Seachem Purigen has microscopic pores that increase its usable surface area to many times that of a purely spherical resin.

KanaPlex is a blended kanamycin based medication that safely and effectively treats several fungal and bacterial fish diseases (dropsy, popeye, fin/tail rot, septicemia)

Good for treating internal infections in situations where food is refused

Does not adversely effect the filter bed and is easily removed with carbon

This product is easy to use

This product adds a great value

This product is manufactured in United States

Prime removes chlorine, chloramine and detoxifies ammonia and prime converts ammonia into a safe, non-toxic form that is readily removed by the tank’s biofilter.

Prime is the complete and concentrated conditioner for both fresh and saltwater.

Prime may be used during tank cycling to alleviate ammonia nitrite toxicity.

Seachem Flourish Iron- Ferrous Iron for Planted Aquariums

HIGHLY CONCENTRATED: Flourish Iron is a highly concentrated (10,000 mg/L) ferrous iron gluconate supplement

FERROUS IRON: Plants are able to easily derive a benefit from Flourish Iron because ferrous iron gluconate is already in the ferrous form so they do not expend energy reducing it

Raises carbonate alkalinity (KH)

Concentrated (4, 000 meq/L)

Made with a blend of carbonate and bicarbonate salts

Using a medicated food mix will prevent damage to delicate plants or invertebrates from medication.

There are corals, plants, or invertebrates in the tank

You are already treating with a medication in the water

Adjusts pH to neutral

Removes Chlorine, Chloramine

Detoxifies ammonia

Contains one (1) API AQUA ESSENTIAL Water Conditioner 16 ounce bottle; treats up to 4,730 U.S. Gallons

WORKS INSTANTLY: Highly concentrated aquarium treatment works instantly to remove harmful chemicals, making tap water safe for fish in freshwater, saltwater and planted aquariums; Reduces the risk of fish loss when starting or maintaining a fish tank

DECHLORINATOR: Removes chlorine, chloramines, heavy metals which are found in tap water and can cause gill and tissue damage, breathing difficulty, stress and fish death

CLARIFIER: Clarity is the ultimate clarifier for both fresh and saltwater tanks. Clarity will help clear all types of clouding

REEF AND PLANT SAFE: Clarity contains an advanced polymeric flocculating agent that is both reef and plant safe.

MULTI-USE: Clarity is the only clarifier on the market that does it all. Clarity contains both precipitating and flocculating components in the same bottle that will clear and clean all types of cloudiness in all environments.

CONDITIONER: Seachem Pond Prime is a complete conditioner that works to provide essential ions and stimulates natural slime coat in any pond.

REMOVER: Use 1/8 cup (2 tablespoons) of Seachem Pond Prime for each 600-700 US gallons to successfully remove chlorine or chloramine from your fish’s environment.

DETOXIFIER: Seachem Pond Prime will detoxify any ammonia or nitrite produced by fish that live in your pond. To detoxify high concentrations of ammonia or nitrite, use 1/4 to 1/2 cup for each 600 gallons.

MINERALS: Equilibrium is specifically designed to establish the optimal mineral content for the planted aquarium. When this mixture is added to the aquarium it will impart a slight haze that should clear within 15–30 minutes.

EQUILIBRIUM: Does not contain sodium or chloride (which can be detrimental to a planted aquarium at elevated levels).

SUITED FOR: Equilibrium is preferably suited for use with RO (reverse osmosis) and DI (deionized) water or any mineral deficient water.

Detoxifies ammonia for up to 72 hours

Ideal for emergency situations

More effective than any other ammonia-binding product

PACKAGE INCLUDES: (1) Seachem Prime Fresh 500ml, Seachem (1) Stability 500ml, and 10ct Pet Faves pet wipes

PRIME - POWERFUL TREATMENT: Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine

STABILITY - TANK STABILIZATION: 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".

Seachem Clarity- Water Clarifier Solution for Marine and Freshwater Aquariums

RESTORE: Reef Fusion 2 is designed to restore and maintain alkalinity in the reef aquarium and provide calcareous species with the essential carbonate needed for growth

MIXTURE: Reef Fusion 2 contains a mixture of carbonates and bicarbonates at an alkalinity of 4400 meq/L

No Binding or packing

Will not raise pH over 7.0

High performance

This product is easy to use

This product adds a great Value

This product is Manufactured in United States

Binds medications to fish food, marine and freshwater

Antibacterial polymer for internal infections of fish

Aids in treating internal infections

500ml Garlic Guard Concentrated Aquarium Supplement

5g (0.18oz) Metroplex Powder Treatment

5g (0.18oz) Kanaplex Powder Treatment

POWERFUL: CupriSorb is a powerful adsorbent of copper and heavy metals.

REMOVER: CupriSorb will remove copper more rapidly and efficiently than carbon making it ideal for emergency copper removal.

EXTRACTS: CupriSorb extracts all types of copper, including chelated copper, and remains effective until it turns a deep blue-black color.