Seachem NutriDiet Vacation Tabs
NutriDiet vacation tabs are slow-release food tablets designed to feed aquarium fish while you are away. Each tab dissolves gradually and delivers a balanced, high-quality diet without clouding the water. They are suitable for most freshwater community fish and make short trips stress-free for both you and your aquarium.
What they do
Provide steady, controlled feeding for up to 3 days per tab
Release food slowly to prevent overfeeding
Maintain water clarity with a clean-dissolving formula
Offer complete nutrition with vitamins, minerals, and proteins
Designed for freshwater community fish
Why they’re useful
Ideal for weekends or short getaways
Reduce the risk of water pollution caused by cheap vacation blocks
Keep fish fed without needing someone to visit your home
Made with high-quality ingredients for better digestion
Safe for most community species, including tetras, guppies, barbs, and small gouramis
How to use
Add the correct number of tabs based on tank size and number of fish
Place the tabs in an area with moderate water flow
Allow them to dissolve naturally over the feeding period
(For longer trips, add fresh tabs after 3 days or use an automatic feeder.)
Ideal for
Freshwater community aquariums
Weekend trips and short holidays
Tanks with small–medium fish
Aquarists who want a clean and reliable vacation feeding option
Reliable feeding while you’re away
Seachem NutriDiet vacation tabs offer a safe, nutritious, and clean way to keep fish fed when you can’t be there.
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
Seachem Pad
Seachem Pad is a high-quality mechanical filter media designed to remove debris, particulate matter, and suspended solids from aquarium water. By trapping fine particles, it helps maintain water clarity and reduces the load on biological and chemical filtration media.
The pad is durable, easy to cut, and fits standard filter setups, making it ideal for both freshwater and marine aquariums. Its simple, effective design ensures efficient filtration while being safe for fish, plants, and invertebrates.
Key Features:
Traps debris, particulate matter, and suspended solids
Improves water clarity and quality
Durable and long-lasting
Easy to cut and fit standard filters
Safe for freshwater and marine aquariums
Suitable For:
Freshwater aquariums
Marine and reef aquariums
Mechanical filtration in canister, hang-on-back, or sump filters
Supporting biological and chemical filtration
Seachem Pad is a simple, reliable solution for maintaining clean, clear water and protecting other filtration media in your aquarium system.
Seachem Paraguard – Broad Spectrum Fish Treatment
seachem paraguard is a gentle, effective treatment designed to help control external issues such as parasites, fungus and surface infections in freshwater and marine aquariums. it uses a stable aldehyde-based formula that is safer and less harsh than traditional medications, making it suitable for sensitive fish when used as directed.
paraguard is ideal for quarantine tanks, new arrivals and aquariums that need broad-spectrum support. it does not contain formaldehyde or methanol and is safe for most fish when used appropriately.
what it does
supports control of external parasites and infections
gentle, non-formaldehyde formula
suitable for freshwater and marine aquariums
great for quarantine and new fish introduction
available sizes (select your size above)
paraguard 100 ml
paraguard 250 ml
paraguard 500 ml
paraguard 2 l
Seachem Pearl Beach – 3.5 kg / 10 kg
Description
A natural aragonite substrate for marine, reef, and tropical aquariums. Seachem Pearl Beach helps stabilize calcium and alkalinity while reducing large drops in pH, creating a healthy and stable foundation for your aquarium. It is sold dry, giving you more substrate per bag compared to wet alternatives.
Key Features
• Natural aragonite substrate for marine and reef tanks• Assists in stabilizing calcium and alkalinity• Helps prevent large pH declines• Dry substrate — more volume per bag than wet products• Suitable for reef, marine, and tropical aquariums
Benefits
✔ Helps maintain stable water chemistry✔ Supports balanced calcium and alkalinity levels✔ Reduces risk of pH swings✔ Provides a natural, attractive substrate foundation
Usage
Rinse thoroughly before use to remove residual dust.
Spread evenly across the aquarium bottom to your desired depth.
Add water slowly to avoid disturbing the substrate bed.
If initial cloudiness occurs, use mechanical filtration to clear water.
Seachem pH Alert
The seachem pH alert is a small, colour-changing sensor that gives you continuous pH monitoring inside your freshwater aquarium. It shows changes instantly and makes it easy to keep your water stable without test strips or liquid kits.
What it does
Continuously monitors pH in freshwater tanks
Uses a clear colour scale you can read at a glance
Shows changes instantly, helping you spot problems early
Lasts about 3 to 6 months, depending on water conditions
No batteries, calibration, or maintenance needed
Why it’s useful
Helps maintain stable pH for healthy fish and plants
Great for community tanks, planted tanks, shrimp tanks, and betta tanks
Ideal for beginners and convenient for experienced aquarists
More economical than regular test strips
Slim design that sits neatly inside the aquarium
How to use
Rinse the pH alert with aquarium water
Place it inside the tank where it is easy to see
Check the colour against the built-in scale any time
Replace when the sensor becomes slow to respond
Ideal for
Freshwater aquariums
New setups needing stability checks
Planted tanks and shrimp tanks
Nano tanks and betta tanks
Quarantine and breeding tanks
Simple, clear pH monitoring
The seachem pH alert offers quick, everyday visibility of your tank’s pH, helping you keep your aquarium stable and your fish comfortable.
Seachem pH Alert
Monitor your aquarium’s pH continuously with the reliable Seachem Seachem pH Alert. This easy-to-use in-tank sensor provides constant pH monitoring for freshwater aquariums without the need for test kits or strips. The colour-changing sensor instantly shows your pH range, helping you quickly spot dangerous changes and maintain a stable, healthy environment for your fish.
Key Features
Continuous pH monitoring inside the aquarium
Clear colour indicator showing pH levels
Designed for freshwater aquariums
No test kits or chemicals required
Easy suction cup mounting
Long-lasting sensor (up to 1 year)
Benefits
✅ Provides constant pH monitoring without daily testing✅ Helps detect sudden pH swings that stress fish✅ Saves money on disposable test kits✅ Quick colour display makes readings easy for beginners✅ Helps maintain a stable and healthy aquarium environment
Instructions for Use
Remove the protective film from the sensor.
Attach the sensor inside the aquarium using the suction cup.
Allow the unit to adjust in the water for a short period.
Compare the colour of the sensor with the pH chart on the device.
Take corrective action if the pH moves outside the safe range for your fish.
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
Seachem PhosFiltrum
Seachem PhosFiltrum is a highly effective phosphate-removal media designed to help control phosphate levels in aquariums. By reducing excess phosphates, it helps prevent unwanted algae growth and supports clearer, healthier water conditions.
PhosFiltrum works quickly and safely, making it ideal for both freshwater and marine systems. It is especially useful in heavily stocked tanks or aquariums experiencing persistent algae issues caused by elevated phosphate levels.
Key Features:
Effectively removes phosphates from aquarium water
Helps reduce algae growth
Improves overall water quality and clarity
Safe for freshwater and marine aquariums
Easy to use in filter media bags or reactors
Suitable For:
Freshwater aquariums
Marine and reef aquariums
Algae control
Phosphate management
Available Sizes:
50g
160g
Seachem PhosFiltrum is a reliable solution for maintaining low phosphate levels and creating a cleaner, more balanced aquarium environment.
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 PhosNet (50g)
Seachem PhosNet is a high-capacity phosphate and silicate remover designed for both freshwater and marine aquariums. It rapidly and effectively reduces phosphate levels, helping to prevent nuisance algae growth and improve overall water clarity.
PhosNet is ideal for use in filter media bags or reactors and works quickly without releasing harmful substances back into the aquarium when exhausted.
Features & Benefits:
Rapidly removes phosphate and silicate
Helps control and prevent nuisance algae
Improves water clarity and overall water quality
Suitable for freshwater and marine aquariums
High-capacity, fast-acting media
Ideal for use in filter bags or reactors
Trusted quality by Seachem
Available Size:
PhosNet – 50g
Safe for all aquarium inhabitants when used as directed. Rinse before use. Monitor phosphate levels regularly and replace media as needed.
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