Best API Aquarium Accessories

API LEAF ZONE is a liquid fertilizer for freshwater aquariums that delivers essential nutrients like chelated iron and potassium for rapid leaf absorption. Aquarium owners with live plants should buy it to promote strong, colorful growth and prevent yellow, decaying leaves.

• Promotes lush, vibrant leaves that outcompete algae for nutrients
• Prevents yellowing and decaying leaves with essential chelated iron and potassium
• Rapid absorption through plant leaves for quick results
• Supports photosynthesis and cell pressure for hardy plant growth
• Easy weekly dosing of 5ml per 10 US gallons

Formulated for fast leaf uptake and strong plant development. Contains key nutrients to maintain vibrant colors and prevent die-off. Helps create a balanced environment by reducing algae competition.

Intended for freshwater aquariums only, not saltwater. Requires weekly application for best results. Overdose may necessitate a partial water change.

API ACCU-CLEAR is a liquid water clarifier that clumps floating particles in freshwater aquariums, clearing cloudy or green water within hours. Freshwater hobbyists with gravel-induced cloudiness should buy it for rapid results and improved filter performance.

• Rapidly clears cloudy or green water by clumping particles for easy removal
• Clears aquarium water in just hours for a crystal-clear view of your fish
• Boosts aquarium filter efficiency by forming larger particle clusters
• Safe and effective for routine weekly maintenance in freshwater tanks
• Prevents ongoing cloudiness when used proactively with regular dosing

Fast-acting formula clears water within hours. Enhances filter performance for better long-term maintenance. Easy to dose and safe for freshwater aquariums.

For freshwater aquariums only, not suitable for saltwater. May require a second dose after 24 hours if cloudiness persists. Does not address underlying causes like overfeeding or poor filtration.

API STRESS COAT is a dual-action freshwater aquarium water conditioner that removes chlorine, chloramines, ammonia, and heavy metals from tap water while aloe vera replaces the protective slime coat. Scientifically proven to reduce fish stress by 40% and heal damaged tissue, it's essential for hobbyists doing water changes or adding new fish.

• Instantly detoxifies tap water by neutralizing chlorine, chloramines, ammonia, and heavy metals to prevent gill damage and fish death
• Replaces natural slime coat lost from handling, shipping, or stress, shielding fish from injury
• Aloe vera formula proven to cut fish stress by 40% and regenerate torn fins and skin
• Promotes rapid tissue healing and protects against breathing difficulties
• Simplifies safe water changes for vibrant, healthy freshwater fish

Effectively makes tap water instantly safe for fish. Heals wounds and restores protective slime coat with aloe vera. Reduces stress by 40% based on scientific proof.

Formulated specifically for freshwater aquariums, not saltwater. Requires double dose for severe fin or skin damage. Must be used precisely to maintain optimal water balance.

API TAP WATER CONDITIONER is a super-concentrated aquarium treatment that instantly removes chlorine, neutralizes chloramines, and detoxifies heavy metals in tap water. Aquarium hobbyists with freshwater or saltwater setups should buy it for safe water changes, new tank setups, and adding fish to prevent gill damage and death.

• Instantly neutralizes chlorine and chloramines to eliminate gill-destroying toxins
• Detoxifies heavy metals in tap water for healthier fish and vibrant aquariums
• Super-concentrated formula treats 20 gallons per 1 ml for cost-effective use
• Safe for all freshwater and saltwater fish during water changes and new additions
• Prevents tissue irritation and fish death by making tap water instantly fish-ready

Highly effective at removing multiple tap water chemicals. Ultra-concentrated for efficient, long-lasting supply. Versatile for both fresh and salt water aquariums.

Requires precise measurement for accurate dosing. Does not test water quality; pair with API test kits. 16 oz bottle may deplete quickly in very large tanks.

API ROOT TABS are 0.4-ounce fertilizer tablets for freshwater aquarium plants, delivering essential nutrients like iron, potassium, and carbon to promote strong root development and prevent yellowing or leaf drop. Aquarists with planted tanks should buy this for vigorous new growth and thriving established plants.

• Builds strong roots for lush, vibrant aquarium plants
• Supplies iron, potassium, and carbon for rapid growth
• Gives new plants a vigorous start and sustains established ones
• Prevents yellowing, leaf drop, and plant die-off
• Easy monthly dosing directly into gravel bed

Highly effective nutrients promote healthy root systems. Simple to use with monthly gravel insertion. Supports both new and mature plants thriving.

Requires monthly reapplication for consistent results. Overdosing necessitates partial water changes. Best suited for gravel substrates, not bare bottoms.

API Quick Start is a 16-ounce bottle of live nitrifying bacteria that rapidly consumes ammonia and nitrite to prevent new tank syndrome in freshwater and saltwater setups. New aquarium owners or those adding fish should buy it for immediate safe fish introduction and ecosystem restoration.

• Instantly kickstarts nitrogen cycle for safe immediate fish addition
• Prevents deadly new tank syndrome and fish loss
• Scientifically proven to eliminate harmful ammonia and nitrite
• Versatile for new setups, water changes, filter cleaning, or medicating
• Restores beneficial bacteria ecosystem monthly

Enables instant fish stocking without cycling wait. Patented live bacteria deliver fast, reliable results. Supports routine maintenance to keep water pristine.

Requires pairing with regular water testing for best results. Not a complete long-term cycling solution alone. Optimal effectiveness in moderately stocked tanks.

The API Freshwater Master Test Kit accurately measures pH, high range pH, ammonia, nitrite, and nitrate in freshwater aquariums using drop tests and a color card. Its scientific precision and comprehensive coverage make it essential for weekly monitoring by freshwater fish owners to prevent invisible water issues.

• Prevents invisible water problems that harm fish by monitoring key parameters like ammonia and nitrite
• Delivers professional-grade accuracy for pH, high range pH, ammonia, nitrite, and nitrate
• Easy drop-and-compare testing with included tubes, tray, and laminated color card
• Provides 800 tests for long-term weekly monitoring in freshwater aquariums
• Supports healthy fish thriving by maintaining balanced water conditions

Tests five critical parameters with scientific accuracy. Includes all tools needed: 7 solution bottles, 4 tubes, tray, and color card. Ideal for regular use to catch issues from waste or water changes early.

Designed exclusively for freshwater aquariums, not saltwater or reef. Liquid drop tests require more time than test strips. Multiple solution bottles need careful storage to avoid spills.