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

Read more less

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

Read more less

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

Read more less

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

Read more less

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

Read more less

Seachem MatrixCarbon 100 ml–1 L Description Seachem MatrixCarbon is a premium dual‑action filtration media that combines the high adsorption capacity of activated carbon with the biological support of Seachem Matrix. It effectively removes organic wastes, odors, discoloration, and toxins while also providing superior surface area for beneficial bacterial colonization. Suitable for both freshwater and marine aquariums, MatrixCarbon helps maintain crystal‑clear water and healthy biological filtration in a single media. Key Features Combines activated carbon adsorption with Matrix biological support Removes odors, discoloration, and organic contaminants Provides a large surface area for beneficial bacteria Suitable for freshwater and marine aquariums Available in sizes from 100 ml to 1 L Easy to use in media bags, reactors, or filter chambers Benefits Keeps aquarium water clear and free of discoloration Helps eliminate odors and dissolved organic wastes Enhances biological filtration for stable water chemistry Reduces maintenance by combining two media functions Versatile use in different filtration setups Usage Rinse lightly before use to remove dust Place MatrixCarbon in a filter media bag, reactor, or media tray Position in high‑flow area of filter for best results Replace or regenerate according to carbon exhaustion or water quality changes Monitor water clarity and chemistry to determine service life Use in both freshwater and marine aquarium systems for optimal filtration

Read more less

Seachem DeNitrate 250–500ml Description Seachem De*Nitrate is a highly effective liquid filter media designed to reduce both nitrate and phosphate levels in freshwater aquariums. It works by binding nitrate and phosphate into a form that can be easily removed by mechanical filtration, helping to control algae growth and maintain clearer, healthier water. De*Nitrate is suitable for both aquariums and ponds and is especially useful in systems where other nutrient‑reducing methods are needed to improve water quality and prevent nuisance algae. Key Features Reduces nitrate and phosphate levels in freshwater aquariums Binds nutrients into a removable form Helps control algae growth Liquid media for easy dosing Suitable for aquariums and ponds Works well with mechanical filtration Benefits Helps maintain lower nitrate and phosphate levels for healthier water Reduces algae outbreaks by limiting nutrients Supports clearer, more stable aquarium conditions Easy to use liquid formula Useful in heavily stocked or planted systems needing nutrient control Usage Shake well before use Add 5 ml per 40 L of aquarium water initially Repeat dosing every 24 hours until desired nutrient levels are reached Once levels are under control, dose 2.5 ml per 40 L daily or as needed Monitor nitrate and phosphate levels regularly to adjust dosing Use with mechanical filtration to remove bound nutrients from the system

Read more less

Seachem Onyx Sand 7kg Description Seachem Onyx Sand is a premium, deep‑black aquarium substrate ideal for creating high‑contrast, visually striking freshwater tanks. Its fine, natural grains provide a sleek and dramatic foundation that enhances the appearance of fish and décor. Aquarium‑ready and easy to rinse, Onyx Sand offers a stable base suitable for both planted and community aquariums. Key Features Fine black sand substrate Deep, uniform black color for dramatic aquarium contrast Easy to rinse and aquarium‑ready Stable foundation for décor, fish, and plants Suitable for freshwater aquariums Benefits Enhances visual appeal with a clean, bold black substrate Provides a smooth, natural base for aquatic setups Helps maintain clearer water with minimal residual dust Suitable for a range of aquarium styles, from planted to community tanks Long‑lasting and low maintenance Usage Rinse Seachem Onyx Sand thoroughly with clean water before use Spread evenly across the aquarium bottom Use a depth of 2–3 inches (5–7 cm) depending on setup needs Place décor, rocks, or plants as desired Add water slowly to avoid disturbing the sand Perform gentle vacuuming during maintenance to keep sand clean

Read more less

Seachem Flourite Sand 3.5–7kg Description Seachem Fluorite Sand is a premium, natural fine‑grain substrate designed for freshwater planted aquariums. Combining the aesthetics of sand with the nutrient‑rich, porous structure of Fluorite, it promotes healthy root growth and supports beneficial bacterial colonization. Its subtle, natural tones enhance the look of aquatic plants and fish while providing a stable, aquarium‑ready base for long‑term tank success. Key Features Fine natural sand substrate Porous structure that supports plant roots and bacteria Aquarium‑ready with easy rinsing Subtle natural coloration for enhanced tank aesthetics Ideal for planted freshwater aquariums Benefits Encourages healthy plant root development Enhances biological filtration and aquarium stability Creates a smooth, attractive substrate surface Minimal cloudiness after rinsing Suitable for a variety of planted aquarium designs Usage Rinse Fluorite Sand thoroughly with clean water before use Spread evenly across the aquarium bottom Use a depth of 2–3 inches (5–7 cm) for planted setups Position plants and add appropriate root tabs or fertilizers as needed Add water slowly to avoid disturbing the substrate Perform routine gentle vacuuming to maintain cleanliness

Read more less

Seachem Fluorite Red 3.5–7kg Description Seachem Fluorite Red is a premium aquarium substrate specially formulated for freshwater planted tanks. Its rich red and earthy tones create a stunning visual backdrop that enhances plant colors and fish contrast. The porous clay structure promotes beneficial bacterial growth and supports strong root establishment, making it ideal for long‑term plant health and overall aquarium stability. Fluorite Red is easy to rinse and aquarium‑ready for immediate use. Key Features Porous clay gravel substrate Rich red and earthy color tones Promotes strong plant root growth Supports beneficial bacterial colonization Easy to rinse and aquarium‑ready Designed for freshwater planted aquariums Benefits Adds vibrant, eye‑catching aesthetics to planted tanks Encourages healthy plant root development Enhances biological filtration with porous structure Helps maintain stable, healthy aquarium conditions Long‑lasting substrate with minimal water cloudiness after rinsing Usage Rinse Fluorite Red thoroughly with clean water before use Spread evenly across the aquarium bottom Use a depth of 2–3 inches (5–7 cm) for planted aquarium setups Position plants and add appropriate root tabs or fertilizers as needed Add water slowly over a plate or dish to avoid disturbing substrate Perform routine gentle vacuuming to maintain cleanliness

Read more less

Seachem Flourite Dark 3.5–7kg Description Seachem Flourite Dark is a high‑quality, porous clay gravel substrate designed for planted freshwater aquariums. Its rich, natural dark tones provide an attractive contrast that enhances the appearance of plants and fish. The porous structure promotes beneficial bacterial colonization and supports strong root development, helping establish and maintain a healthy, thriving aquatic environment. Flourite Dark is easy to rinse and aquarium‑ready, making it suitable for both new setups and aquascaping projects. Key Features Porous clay gravel substrate ideal for planted tanks Rich dark color for enhanced aquarium aesthetics Promotes strong plant root growth Supports beneficial bacterial colonization Easy to rinse and aquarium‑ready Suitable for freshwater planted aquariums Benefits Creates a visually striking foundation in aquarium setups Encourages healthy plant growth and root development Enhances biological filtration with its porous composition Helps maintain stable, healthy aquarium conditions Long‑lasting substrate with minimal cloudiness after rinsing Usage Rinse Flourite Dark thoroughly with clean water before use Spread evenly across the aquarium bottom Use a depth of 2–3 inches (5–7 cm) for planted aquarium setups Position plants and add appropriate root tabs or fertilizers as needed Add water slowly to avoid disturbing the substrate Perform routine gentle vacuuming to maintain cleanliness without disrupting roots

Read more less

Seachem Flourite Black 3.5kg–7kg Description Seachem Flourite Black is a premium, porous clay gravel specifically designed for planted aquariums. Its rich black color enhances the natural beauty of aquatic plants and fish while providing an optimal substrate that promotes strong root development. The unique porous structure supports beneficial bacterial colonization, helping to maintain healthy biological filtration. Flourite Black is easy to rinse and ideal for both freshwater and planted aquarium setups. Key Features Natural porous clay gravel substrate Deep black color for dramatic contrast and visual appeal Promotes strong plant root growth Supports beneficial bacterial colonization Easy to rinse and aquarium‑ready Suitable for planted freshwater aquariums Benefits Enhances the look of planted tanks with rich, uniform black color Provides a stable substrate that encourages vigorous plant growth Improves biological filtration through porous structure Helps maintain healthy aquarium conditions Long‑lasting, non‑muddy gravel that won’t cloud water after rinsing Usage Rinse Flourite Black thoroughly with clean water before use Spread substrate evenly across the aquarium bottom Use a depth of 2–3 inches (5–7 cm) for planted aquariums Position plants and add appropriate root tabs or fertilizers as needed Perform regular maintenance with gentle vacuuming to avoid disturbing roots Top up substrate during tank upgrades or plant rearrangements

Read more less