Seachem Reef Nitrogen 100 ml–500 ml
Description
Seachem Reef Nitrogen is a precision liquid supplement designed to provide a stable source of nitrogen for marine and reef aquariums. Nitrogen is an essential element used by corals and other reef organisms for growth and metabolic functions. Reef Nitrogen helps maintain balanced nutrient levels without causing harmful spikes in ammonia or nitrate, supporting healthy biological processes and overall reef vitality.
Key Features
Provides a controlled source of nitrogen for reef systems
Liquid formula for accurate and easy dosing
Designed specifically for marine and reef aquariums
Helps support biological processes in corals and invertebrates
Available in sizes from 100 ml to 500 ml
Compatible with regular reef supplement routines
Benefits
Supports nutrient balance critical to coral and invertebrate health
Helps maintain stable nitrogen levels without harmful fluctuations
Encourages healthy growth and metabolic activity
Easy to dose as part of ongoing reef maintenance
Works well with other reef supplements for complete water chemistry support
Usage
Test water parameters before dosing when possible
Dose according to aquarium volume and current nutrient levels
Add Reef Nitrogen directly to the aquarium or dosing container
Dose regularly as part of routine reef maintenance
Monitor coral and invertebrate response and adjust dosing as needed
Use in conjunction with other reef supplements for balanced nutrient support
Seachem Reef Iron 100–500 ml
Description
Seachem Reef Iron is a liquid trace element supplement formulated to replenish iron and essential trace metals that are consumed by corals and other invertebrates in marine and reef aquariums. Iron is important for healthy coral pigmentation, metabolic processes, and overall vitality. Reef Iron helps maintain stable trace element levels, supporting vibrant coral growth and balanced reef water chemistry.
Key Features
Provides essential iron and trace elements for reef aquariums
Liquid formula for easy dosing
Designed specifically for marine and reef systems
Supports coral pigmentation and metabolic health
Available in sizes from 100 ml to 500 ml
Can be used as part of a regular supplement program
Benefits
Helps maintain balanced trace element levels
Supports vibrant coral coloration and growth
Encourages overall coral and invertebrate health
Easy to dose and integrate into maintenance routines
Works alongside other reef supplements for complete water chemistry support
Usage
Test iron and trace element levels if possible before dosing
Dose according to aquarium volume and current water parameters
Add Reef Iron directly to the aquarium or dosing container
Dose regularly to maintain balanced trace element levels
Monitor coral response and adjust dosing as needed
Use with other reef supplements for a complete nutrient regimen
Seachem Reef Iodide 250 ml–500 ml
Description
Seachem Reef Iodide is a concentrated liquid supplement formulated to replenish iodine and other essential trace elements that are naturally consumed by corals and invertebrates in marine and reef aquariums. Iodine plays a key role in coral pigmentation, polyp extension, and overall health. Reef Iodide helps maintain balanced trace element levels to support vibrant coral growth and long‑term reef vitality.
Key Features
Replenishes iodine and essential trace elements
Specifically designed for marine and reef aquariums
Liquid formula for easy dosing
Supports coral pigmentation and polyp extension
Compatible with regular reef maintenance routines
Available in 250 ml to 500 ml sizes
Benefits
Helps maintain optimal trace element balance in reef systems
Supports enhanced coral coloration and vitality
Encourages healthy polyp extension and reef activity
Easy to dose as part of ongoing aquarium care
Works with other reef supplements for balanced chemistry
Usage
Test iodine or trace element levels routinely if possible
Dose according to aquarium volume and current trace element levels
Add Reef Iodide directly to the aquarium or dosing container
Dose regularly as part of routine reef maintenance
Monitor coral response and adjust dosing as needed
Use alongside comprehensive reef supplement programs for balanced water
Seachem Reef Fusion 2 500 ml–4 L
Description
Seachem Fusion 2 is a complete reef aquarium supplement specifically formulated to support stable calcium, alkalinity, and magnesium levels while minimizing precipitation. Designed for use in marine and reef systems, Fusion 2 helps maintain balanced water chemistry that supports healthy coral growth and skeletal development. Its advanced buffered formula allows simultaneous replenishment of major reef elements with controlled dosing, making it ideal for regular use in reef aquarium maintenance.
Key Features
Comprehensive supplement for calcium, alkalinity, and magnesium
Buffered to reduce pH swings and minimize precipitation
Suitable for marine and reef aquariums
Available in sizes from 500 ml to 4 L
Easy to dose liquid formula
Supports consistent reef water chemistry
Benefits
Helps maintain stable major reef parameters
Encourages healthy coral growth and skeletal strength
Reduces the challenges of balancing reef chemistry
Simplifies supplementation with a single product
Promotes overall reef aquarium health
Usage
Test calcium, alkalinity, and magnesium levels before dosing
Dose according to tank volume and current water parameters
Add Fusion 2 directly to the aquarium or dosing container
Dose regularly to maintain recommended reef element levels
Monitor water chemistry frequently to adjust dosing as needed
Use alongside quality test kits for optimal reef balance
Seachem Fusion 1 500 ml–4 L
Description
Seachem Fusion 1 is a complete reef supplement designed to maintain stable and balanced calcium, alkalinity, and magnesium levels simultaneously in marine and reef aquariums. Formulated for ease of use and precise dosing, Fusion 1 helps support healthy coral growth, skeletal development, and overall reef vitality. Its buffered formula reduces the risk of precipitation and pH swings, making it suitable for regular dosing as part of a reef aquarium maintenance routine.
Key Features
Comprehensive reef supplement for calcium, alkalinity, and magnesium
Buffered formula to minimize pH fluctuation and precipitation
Designed for marine and reef aquariums
Available in 500 ml to 4 L sizes
Easy to dose liquid formula
Supports balanced water chemistry
Benefits
Helps maintain consistent levels of essential reef elements
Supports robust coral growth and skeletal health
Reduces the risk of chemical imbalance and precipitation
Simplifies reef aquarium supplementation with a single product
Suitable for regular use in reef maintenance schedules
Usage
Test calcium, alkalinity, and magnesium levels before dosing
Dose according to aquarium volume and current parameters
Add Fusion 1 directly to the aquarium or dosing container
Dose regularly to maintain recommended reef water chemistry
Monitor parameters often to adjust dosing as needed
Use in conjunction with quality test kits for optimal reef balance
Seachem Reef Carbonate 250–500g
Description
Seachem Reef Carbonate is a specially formulated buffering blend designed to raise and stabilize carbonate hardness (kH) and pH in marine and reef aquariums. By mimicking natural seawater carbonate composition, it helps maintain optimal water chemistry for stony corals, clams, and other reef‑building organisms. Reef Carbonate supports a stable alkaline environment, which is essential for healthy coral growth and overall reef system stability.
Key Features
Raises and stabilizes carbonate hardness (kH)
Helps maintain reef‑appropriate alkaline pH
Designed specifically for marine and reef aquariums
Easy to dose granular formula
Balances buffering ions to support long‑term stability
Suitable for regular use during water changes
Benefits
Promotes strong coral growth and skeletal development
Helps prevent pH swings common in reef systems
Supports overall reef aquarium stability
Aids in maintaining balanced water chemistry
Easy to use for routine maintenance and adjustments
Usage
Test kH and pH before dosing
Add gradually to raise carbonate hardness to desired range
Dissolve in replacement (new) water before adding to the aquarium when possible
Adjust dosage based on aquarium size and current carbonate levels
Once target levels are reached, dose regularly during water changes or as needed
Monitor water chemistry frequently to ensure stable reef conditions
Seachem Reef Calcium 250ml
Description
Seachem Reef Calcium is a concentrated liquid supplement formulated to replenish calcium levels in marine and reef aquariums. Calcium is essential for healthy coral growth, skeletal formation in invertebrates, and overall reef vitality. This easy‑to‑dose solution helps maintain stable calcium levels, supporting robust coral development and balanced water chemistry in reef systems.
Key Features
Concentrated liquid calcium supplement
Designed for marine and reef aquariums
Helps maintain optimal calcium levels
Easy to dose with clear instructions
Supports coral skeletal growth
Compatible with regular testing and dosing routines
Benefits
Promotes strong coral growth and skeletal health
Helps support invertebrate shell formation
Maintains balanced water chemistry in reefs
Easy to integrate into routine dosing schedules
Supports overall aquarium health and vitality
Usage
Test calcium levels before dosing
Add according to manufacturer dosing instructions (typically based on aquarium size and current levels)
Dose regularly to maintain recommended calcium range
Monitor calcium levels frequently with a reliable test kit
Adjust dosing based on water parameters and coral/invertebrate demand
Use in conjunction with other reef supplements for balanced trace element levels
Seachem CoralCrete 57 g–114 g
Description
Seachem CoralCrete is a professional‑grade two‑part epoxy putty designed for reef aquarium aquascaping and coral placement. It securely bonds coral to rockwork and can fuse rock structures to create stable, long‑lasting formations in both marine and freshwater systems. With a workable five‑minute window and full cure within 24 hours, CoralCrete is safe for aquarium inhabitants when used as directed.
Key Features
Two‑part epoxy putty for strong adhesion
Designed for coral placement and rockwork fusion
Gray color blends naturally with reef rock
Works submerged or emerged
Five‑minute working time with full cure in 24 hours
Aquarium safe when used as directed
Benefits
Provides stable and secure placement for corals and rock structures
Ideal for large polyp, branching, and plating corals
Blends with natural rockwork for a seamless reef look
Versatile use in both saltwater and freshwater systems
Cures fully underwater or out of water, offering installation flexibility
Usage
Wear gloves if you have sensitive skin
Cut off the desired amount of CoralCrete putty
Knead until the color is uniform and the putty is consistent
Press the putty around the base of coral or rock contact points
Work quickly — you have about 5 minutes of working time
Initial hardening begins in about 15 minutes; full cure in 24 hours
Can be applied submerged or emerged depending on your project
Seachem SeaGel 250 ml – 1 L
Description
Seachem SeaGel is a premium dual‑purpose filtration media that combines the power of MatrixCarbon and PhosGuard in a single blend to quickly remove a wide range of water contaminants. It targets organic waste, color‑causing compounds, acids, toxic metals, phosphate, and silicate to improve overall water quality without introducing phosphate into the system. SeaGel is ideal for both freshwater (non‑phosphate‑buffered) and marine aquariums, particularly where superior water clarity and purity are desired.
Key Features
50/50 blend of MatrixCarbon and PhosGuard media for broad filtration action
Removes organic waste, color, acids, metals, phosphate, and silicate
Bead‑shaped media for optimal water flow and contact
Works in both freshwater (non‑phosphate buffered) and marine aquariums
Available in sizes from 250 ml to 1 L
More convenient than using separate media bags
Benefits
Enhances water clarity by removing dissolved organics and discoloration
Helps reduce algae‑favoring nutrients like phosphate and silicate
Improves overall aquarium water quality and stability
Protects sensitive fish and marine life from toxic metals and acids
Combines two filtration functions in one media—saving space and hassle
Usage
Rinse lightly before first use to remove dust
Place in a filter media bag or media chamber in a high‑flow area
Use roughly 250 ml per 150–225 L of aquarium water
Ensure water flows through media for maximum contact and efficiency
Replace media after approximately 3–4 months or when water quality no longer improves
Suitable for both freshwater (non‑phosphate buffered) and marine filtration setups
Seachem PhosNet 125g–250g
Description
Seachem PhosNet is a high‑capacity granular ferric oxide (GFO) filtration media designed to rapidly remove phosphates and silicates from both freshwater and marine aquariums. Its highly porous structure and large surface area allow it to bind nutrients more effectively than many competing products, helping to maintain crystal‑clear water and reduce algae growth without releasing bound nutrients back into the aquarium.
Key Features
High‑capacity granular ferric oxide (GFO) media
Rapidly removes phosphates and silicates
High porosity and large surface area for efficient binding
Less dust than many competing GFO products
Safe for use in freshwater and marine aquariums
Available in 125 g and 250 g sizes
Benefits
Helps control algae by lowering nutrient levels
Improves water clarity and overall aquarium appearance
Effective nutrient control in both reef and freshwater systems
Easier to handle with reduced dust compared to some media
Long‑lasting media until phosphate/silicate levels rise again
Usage
Rinse PhosNet lightly before use to remove dust
Place in a filter media bag, canister filter, media chamber, or high‑flow area
Use approximately 50 g per 200 L saltwater or 400 L freshwater initially
Leave in place for about 4 days, then test phosphate/silicate levels
Replace media when nutrient levels begin to climb again
Avoid overcrowding media to prevent reduced flow and efficienc
Seachem PhosGuard 100 ml – 2 L
Description
Seachem PhosGuard is a high‑performance phosphate and silicate remover for both freshwater and marine aquariums. Its spherical, highly porous alumina‑oxide media binds phosphate and silicate irreversibly, helping to control nutrient levels that fuel algae growth and reduce water clarity. PhosGuard works rapidly and can be used in a variety of filtration systems to support cleaner, healthier water conditions.
Key Features
Rapidly removes phosphate and silicate from aquarium water
Spherical bead‑shaped media for optimal water flow
Irreversible binding — does not release nutrients back into water
Effective in both freshwater and marine systems
Available in sizes from 100 ml up to 2 L
Ideal for use with filter bags, media chambers, or high‑flow areas
Benefits
Helps control algae by lowering phosphate and silicate levels
Improves water clarity and overall tank appearance
Supports healthier aquatic environment for fish and invertebrates
Easy to integrate into existing filtration setups
Can be dried and reused until fully exhausted
Usage
Rinse PhosGuard lightly before use to remove dust
Pre‑wet media by adding to twice its volume of freshwater, then rinse
Place in a filter media bag, media chamber, or canister filter in a high‑flow area
Use ~85 ml per 200 L saltwater or 400 L freshwater initially
Leave media in place for around 4 days, then test phosphate/silicate levels
Replace media when phosphate begins to rise again
Avoid overdosing in sensitive or phosphate‑buffered freshwater tanks
Seachem PhosBond 100 ml–1 L
Description
Seachem PhosBond is a high‑capacity phosphate remover designed to rapidly reduce phosphate and silicate levels in both freshwater and marine aquariums. It combines activated alumina and iron oxide to effectively adsorb phosphate from water, helping to control algae growth and improve overall water quality. PhosBond works quickly and efficiently, making it ideal for aquariums where nutrient control is critical for a healthy aquatic environment.
Key Features
High‑capacity phosphate removal media
Combines activated alumina and iron oxide for effective adsorption
Reduces both phosphate and silicate levels
Suitable for freshwater and marine aquariums
Available in sizes from 100 ml to 1 L
Can be used in media bags, reactors, or filter chambers
Benefits
Helps control algae by lowering phosphate levels
Improves water clarity and overall aquarium appearance
Supports a healthier aquatic environment
Works efficiently in both marine and freshwater systems
Versatile media for different filtration setups
Usage
Rinse lightly before first use to remove dust
Place PhosBond in a filter media bag, reactor, or media tray
Position media in a high‑flow area for optimal performance
Replace media when phosphate levels begin to rise again
Monitor phosphate levels to determine media service life
Use in combination with mechanical filtration for best results