Safe™ is the complete and concentrated conditioner for both fresh and salt water.

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

Safe™ may be used during tank cycling to alleviate ammonia/nitrite toxicity.

Safe™ detoxifies nitrite and nitrate, allowing the biofilter to more efficiently remove them.

Safe™ is non-acidic and will not impact pH.

Safe™ will not over activate skimmers.

Use at start-up and whenever adding or replacing water.

Reef Advantage Magnesium™ is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the ionic ratios found in natural sea water.

Reef Advantage Magnesium™ contains no ammonia! This is a common contaminant in every liquid magnesium supplement on the market.


Severely depleted levels of magnesium (below 800 mg/L) can cause depressed pH levels and an inability to maintain proper calcium levels. Magnesium depletion is commonly associated with the use of kalkwasser.

Alkaline Regulator™ adjusts pH to the alkaline range (7.1 – 7.6) and supports the establishment of the optimal environment for all alkaline acclimated species (e.g. bosemani, various other rainbows etc.).

For further freshwater environment enhancement, use Fresh Trace™ to restore the proper level of trace elements required by thriving, healthy freshwater community fish.

Alkaline Buffer™ is a non-phosphate buffer to raise pH and alkalinity (KH) and buffer with Acid Buffer™.

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

Alkaline Buffer™ raises pH and buffers between 7.2 and 8.5. It is gentle, safe, and enhances the freshwater environment.

Use 7 g (1 level teaspoon) for every 40 L (10 gallons) daily until desired pH is reached (this dose raises alkalinity by about 2 meq/L (5.6 dKH)).

If water is soft or not well buffered, use with Acid Buffer™ (see below).

HINTS: Alkaline Buffer™ will not lower pH. It may be added directly to the aquarium at any time. It preferentially buffers at pH 7.8, but can manage any pH between 7.2 and 8.5 when used with Acid Buffer™. If using with RO or DI water for a water change, then use with Acid Buffer™ at a fixed ratio (refer to chart provided on product) to set the desired pH. Once pH is set add water to aquarium as soon as possible to avoid pH fluctuations (for best results, base ratio on weight of product added).

Acid Buffer™ is a non-phosphate buffer to lower pH and buffer with Alkaline Buffer™. Both buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem.

Acid Buffer™ lowers pH and buffers between 5.0 and 8.0 when used with Alkaline Buffer™.

As Acid Buffer™ lowers pH it converts carbonate alkalinity (KH) into available CO2.

It may also be used to safely lower pH in marine water.

DIRECTIONS: To lower pH, use 2 g (1⁄4 teaspoon) to every 80 L (20 gallons*) daily until intended pH is reached (this dose lowers alkalinity by about 0.2 meq/L (0.6 dKH)).

Best if added directly to aquarium.

If water is soft or not well buffered, use with Alkaline Buffer™

Seachem’s Cichlid Lake Salt™ is a chemically sound blend of salts designed to replicate the natural environment of cichlids.

It contains all physiologically essential elements such as magnesium, calcium, sodium, potassium, and includes trace components such as iron, aluminum, and iodide.

It does not contain harmful or unnecessary ingredients such as nitrates, phosphates, arsenic, lithium, or cadmium.

Use Seachem’s Cichlid Trace™ to restore and maintain important trace elements between water changes.

Seachem Cichlid Trace supplies a broad range of trace elements demonstrated to be necessary for proper fish health and growth.

Unlike terrestrial animals, fish obtain nutrients from both their food and environment.

Trace elements are normally depleted by utilization, oxidation and precipitation, thus it is important to restore them on a regular basis.

Cichlid Trace contains only those elements actually demonstrated to be required by fish.

Use 1 capful (5 mL) for every 80 Litres once or twice a week.

de*nitrate™ removes nitrates, nitrites, ammonia, and organics from both fresh and marine water. The high porosity of de*nitrate™ supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts. Even when exhausted as an organic adsorbent, de*nitrate™ continues to be an excellent support for the biological filter and does not have to be removed. This product is sold by volume. Cited weight is minimal weight.

Sizes: 100 mL bagged, 250 mL, 500 mL, 1 L, 2 L, 4 L, 20 L, 100 L

Equilibrium™ is specifically designed to establish the ideal mineral content for the planted aquarium.

Equilibrium™ contains no sodium or chloride (which can be detrimental to a planted aquarium at elevated levels).

Equilibrium™ is ideally suited for use with RO (reverse osmosis) or DI (deionized) water or any mineral deficient water.

Equilibrium™ raises the essential mineral/electrolyte content (General Hardness) of the water to balance with and promote stability of the carbonate hardness. To maintain KH, we recommend Alkaline Buffer™.

SeaChem Entice is an all natural scent and flavour enhancer for finicky eaters. Simply soak any food item in Entice to attract the interest of finicky eaters. Ideal for all marine and freshwater fish.

Briefly soak food prior to feeding or add 1 or 2 capfuls directly to aquarium in the same location in which food was just added. Shake well before use. There is no danger of over use so use as liberally or sparingly as you find necessary

Flourish™ is a comprehensive plant supplement for the natural freshwater aquarium.

It contains a rich assortment of important micro elements, trace elements and other nutrients.

These include calcium, magnesium, iron and other important elements that have been shown to be beneficial to aquatic plants.

For macro element (NPK) fertilization, use Flourish Nitrogen™, Flourish Phosphorus™ or Flourish Potassium™ as needed.

Flourish Potassium™ contains 50,000 mg/L of potassium suitable for the natural planted aquarium.

Potassium is one of several elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium.

Potassium can become depleted in a rapidly growing system or when the source water has a low mineral content. In these cases potassium could become the limiting factor to growth.

Use Flourish Potassium™ to prevent potassium depletion (signs of which include yellowing in older leaves) and maintain the highest level of growth.

Flourish Iron™ is a highly concentrated (10,000 mg/L) ferrous iron (Fe+2) gluconate supplement.

It should be used in those cases where the iron requirements exceed that which can be delivered by Flourish™ at the recommended dose or signs of iron deficiency appear (such as short and slender stems or yellowing between veins.)

Plants are able to much more easily derive a benefit from Flourish Iron™ than from EDTA-iron sources because all EDTA iron is in the ferric (Fe+3) state.

Since plants require iron in the ferrous state, additional physiological energy must be expended in order to extract the ferric iron from EDTA-iron and then convert it to the ferrous form.

Contains no phosphate or nitrate.

Flourish Excel™ is a source of bioavailable organic carbon. All plants require a source of carbon. This is typically obtained from CO2, but, may also be derived from simple organic compounds (such as photosynthetic intermediates). Therefore, one can derive a substantial benefit with the use of Flourish Excel™ either alone or in conjunction with CO2 injection.

Flourish Excel™ also has iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).

Flourish Excel™ is an integral component of Seachem’s plant products and is recommended for use with the entire Flourish™ line as well as our Flourite™ and Onyx Sand™ substrates.

Contains no phosphate or nitrate.

Flourish Trace supplies a broad range of trace elements demonstrated to be necessary for proper plant health and growth. Trace elements are normally depleted by utilization, oxidation and precipitation. The latter two processes occur more rapidly than with other micronutrients. This makes it important to restore trace elements on a regular basis.

Flourish Trace may be used alone or in conjunction with Flourish. Best results are obtained when both are used.

Flourish Tabs™ are growth stimulating tablets for plant roots. They contain essential trace elements, amino acids, and vitamins. They are rich in iron, manganese, magnesium, calcium, potassium, inositol, choline B12, biotin, and other factors that have been determined to be beneficial to aquatic plant roots.

They contain no phosphate or nitrate that would promote algae proliferation.

For best results, use in combination with Flourish™

GarlicGuard is an appetite/flavour enhancer for freshwater and saltwater fish.

GarlicGuard will help renew the interest of poor or finicky eaters. GarlicGuard contains the naturally derived, active ingredient found in garlic, allicin, which has been demonstrated to possess health promoting benefits. Allicin possesses strong anti-oxidant properties (similar to Vitamin C) which promote enhanced health through elimination of dangerous free radicals.

For enhanced health benefits, GarlicGuard also contains Vitamin C.

Freshwater and Marine. Reef safe.

Simply mix Garlic Guard with any food item to attract the interest of finicky eaters

garlic extract 9900 ppm
allicin (active ingredient) 130 ppm
Vitamin C 1000 ppm

Liquid Tanganyika Buffer™ is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness, buffer capacity, and pH.

It is formulated to maintain a pH of 9.0–9.4. For optimum replication of the Tanganyikan environment, use with Cichlid Lake Salt™ (liquid or dry version).

Works best when used in aquaria employing Seachem’s Cichlid Lake Salt™ (liquid or dry version). Final pH depends on the amount of Liquid Tanganyika Buffer™ used.

Malawi/Victoria Buffer™ is a blend of carbonate salts designed to enhance the natural environment of cichlids by increasing hardness, buffer capacity, and pH.

It is formulated to maintain a pH of 7.8–8.4.

For optimum replication of the Malawi/Victoria environment, use with Cichlid Lake Salt™.

Use 5 g (1 level teaspoon) for each 40–80 Litres of water each day until desired pH is attained and maintained.
Thereafter, use as required to maintain pH, usually no more than once every two to three weeks.

It is best to dissolve the buffer in freshwater before use. Use when setting up an aquarium or making water changes (preferably after the addition of Seachem’s Cichlid Lake Salt™) and between water changes as needed to maintain pH. Seachem’s Malawi/Victoria Buffer™ is formulated to maintain a pH between 7.8 and 8.4, depending on the amount used. To attain a lower pH than 7.8, you may use Seachem’s Acid Buffer™ in combination with Malawi/Victoria Buffer™. To attain a higher pH than 8.4, use Tanganyika Buffer™.

Marine Buffer™ will safely raise marine pH to 8.3. It will not raise pH above 8.3 even if inadvertently overdosed.
Marine Buffer™ is a blended product and is not just sodium bicarbonate or sodium carbonate, commonly sold as a substitute. Such products can raise pH to dangerous levels if not used properly.

Marine Buffer™ contains sodium, magnesium, calcium, strontium, and potassium salts of carbonate, bicarbonate, chloride, sulfate, and borate.

Use Seachem’s MultiTest: Marine pH & Alkalinity™ to check pH and total alkalinity.

Use Marine Trace™ to restore the proper level of trace elements required by thriving, healthy saltwater fish.

Matrix is a highly porous media designed to provide exceptionally efficient bio filtration for single site removal of ammonia, nitrite, and nitrate from freshwater, marine, and reef aquaria. Each litre of Matrix provides over 160,000 cm2 (170 sq. ft.) of surface, equivalent to over 40 L (10 US gallons) of typical plastic ball media!

Aerobic bacteria grow on the pitted external surfaces of Matrix and convert ammonia to nitrite and nitrite to nitrate.

Anaerobic bacteria convert nitrate into nitrogen gas, which is then expelled at the tank surface.

Use 1 L of Matrix for each 400 L (100 US gallons) of water. Matrix may be placed in any kind of filter, and is particularly effective in a canister filter. Matrix is sufficiently large that no filter bag should be required for most applications.

This product is sold by volume. Cited weight is minimal weight.

Prime™ is the complete and concentrated conditioner for both fresh and salt water.

Prime™ removes chlorine, chloramine and ammonia.

Prime™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s biofilter.

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

Prime™ detoxifies nitrite and nitrate, allowing the biofilter to more efficiently remove them.

Prime™ also promotes the production and regeneration of the natural slime coat.

Prime™ is non-acidic and will not impact pH.

Prime™ will not overactivate skimmers. Use at start-up and whenever adding or replacing water.

Purigen™ is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500%.

Purigen™ controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds. Purigen’s™ impact on trace elements is minimal. It significantly raises redox. It polishes water to unparalleled clarity. Purigen™ darkens progressively as it exhausts, and is easily renewed by treating with bleach.

Purigen™ is designed for both marine and freshwater use.

This product is sold by volume. Cited weight is minimal weight.

Rinse before use. Use in a fine mesh filter bag. Each 1 L treats up to 4,000 L (1,000 gallons) for up to six months. Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black.

100ml pack comes sealed in net bag (Treats 400 litres)

250ml tub comes as loose coarse powder and should be used in a net bag (not included)(Treats 1000 litres)

Reef Carbonate™ is a concentrated (4,000 meq/L) optimized blend of carbonate and bicarbonate salts designed to restore and maintain alkalinity in the reef aquarium.

Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide carbonates (Reef Carbonate™) and calcium (Reef Advantage Calcium™ or Reef Complete™).

Used as directed, Reef Carbonate™ will not deplete calcium, magnesium, or strontium which usually tend to precipitate with increasing alkalinity. Reef alkalinity should be maintained at 3–5 meq/L (8–14 dKH). Alkalinity should not be allowed to fall below 2 meq/L.

Available in 250ml and 500ml sizes

250ml treats 1000 US gals
500ml treats 2000 US gals

Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH.

Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Complete) and carbonates (Reef Builder or Reef Carbonate).

Reef Complete also includes magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr). This allows one to maintain these two important elements while maintaining calcium.

Reef Iodide™ is a concentrated (8,000 mg/L) stabilized potassium iodide source for reef aquaria that will restore and maintain iodide levels to those found in natural sea water. It is formulated to provide a safe source of iodide that will not convert to toxic free iodine under storage or reef conditions. Iodine is as toxic as chlorine and should never be used in a reef system. However, iodide is as safe as chloride.

Iodide is an important element required by invertebrates and many soft corals (gorgonians, sarcophytons, etc).

Sizes: 100 mL, 250 mL, 500 mL, 2L, 4 L, 20 L

Reef Strontium™ is intended to restore and maintain strontium to levels found in natural seawater without affecting pH. Strontium is utilized in the same manner as calcium and holds a similar importance in maintaining a vigorous level of growth.

Reef Strontium™ contains 10,000 mg/L of available strontium as a gluconate complex. Gluconate complexation confers several benefits: it increases the bioavailability of the strontium, it provides a rich source of metabolic energy to help maintain peak coral growth, and it inhibits strontium precipitation/alkalinity depletion. Gluconate contains no nitrogen or phosphorous, thus it is biologically impossible for it to lead to algae growth in a properly maintained reef system.

Renew™ is ideal for use in systems where phosphate released from all activated carbons poses a problem.

Renew™ is also less aggressive than carbon, making it well suited for reefs and planted aquaria. It is also beneficial for use in soft water aquaria where the pH-raising property of many carbons is not an asset.

Renew™ will remove organics and particulates in the sub-micron range; it will also help control ammonia, nitrates, and phosphates.

This product is sold by volume. Cited weight is minimal weight.

Renew™ should be used in exactly the same manner as activated carbon. Use 250 mL for each 120–160 L (30–40 gallons*). Use in a filter bag only. Although Renew™ is clean, it is advisable to rinse before use. It lasts about the same as carbon (4–6 weeks).

SeaGel is a blend of MatrixCarbon and PhosGuard.

MatrixCarbon is an ultracapacity carbon for the removal of organic and color impurities.

PhosGuard is a powerful remover of phosphate, silicate, toxic metals, and acids.

Both components are bead shaped for optimum water flow characteristics and penetration. The components enhance each other and are ideal for reef and marine use.

May also be used in freshwater that is not phosphate buffered.

Use 500 mL for each 300–450 L (80–120 gallons). Use in a filter bag. Rinse in freshwater before use. Use caution, since product will fizz and heat on initial wetting. SeaGel will function 3–4 months. May also be used in freshwater that is not phosphate buffered.

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".

Stability™ is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite and nitrate. Unlike competing products, the bacteria employed by Stability™ are non-sulfur fixing and will not produce toxic hydrogen sulfide.

Stability™ is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of over use.

Stability™ is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management.

StressGuard™ is the premium slime coat protection product. StressGuard™ will reduce stress and ammonia toxicity whenever handling or transporting fish.

StressGuard™ binds to exposed protein in wounds to promote healing of injured fish and to reduce the likelihood of primary and secondary infections.

StressGuard™ is compatible with all medications except those that are copper based.

StressGuard™ is not amine based and will not interfere with Purigen™ or HyperSorb™ regeneration.

StressGuard™ does not coat resins or clog filtration like competing “slime coat” type products can.

DIRECTIONS: Use 1/2 – 1 capful (2.5 – 5 mL) to every 40 L (10 gallons) daily until signs of stress have abated or healing is complete. Dose may be safely doubled.