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Seachem Freshwater plant additives

SEACHEM LABORATORIES, INC was established in 1980 by Dr. Leo G. Morin, then an associate professor in the School of Medicine, Emory University, Atlanta, GA. In 1994, Dr. Morin retired from the university and became full time CEO and Scientific Director of Seachem. Seachem occupies about 24,000 square feet which includes production and research laboratories, manufacturing, inventory, shipping, and office space.



Seachem Flourish 100 ml. (3.4 fl. oz.) 
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Seachem Flourish 100 ml. (3.4 fl. oz.) planted aquarium supplement. Is a growth stimulator for aquarium plant stems and leaves. It contains a broad spectrum of essential vitamins, trace elements and amino acids. Flourish in gluconate iron, manganese, calcium, magnesium, potassium, inositol, choline vitamin B12 and biotin and other factors determined to be beneficial to plant growth. It contains no phosphate, nitrate or fertilizers that may lead to unwanted algae growth. A 100mL bottle treats 160L (40 gallons) for 4-6 months. House plants also derive similar benefits



Seachem Flourish 100 ml. (3.4 fl. oz.)

Weight: 1.00 

Seachem Flourish 20L (5.3 gal.). 
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Seachem Flourish 20L (5.3 gal.). Is a growth stimulator for aquarium plant stems and leaves. It contains a broad spectrum of essential vitamins, trace elements and amino acids. Flourish in gluconate iron, manganese, calcium, magnesium, potassium, inositol, choline vitamin B12 and biotin and other factors determined to be beneficial to plant growth. It contains no phosphate, nitrate or fertilizers that may lead to unwanted algae growth. A 100mL bottle treats 160L (40 gallons) for 4-6 months. House plants also derive similar benefits. This item is a special order item that is drop shipped direct from Seachem

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Seachem Flourish 20L (5.3 gal.)

Weight: 22.00 

Seachem Flourish 250ml (8.5 fl.oz).  
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Seachem Flourish 250ml (8.5 fl.oz). Is a growth stimulator for aquarium plant stems and leaves. It contains a broad spectrum of essential vitamins, trace elements and amino acids. Flourish in gluconate iron, manganese, calcium, magnesium, potassium, inositol, choline vitamin B12 and biotin and other factors determined to be beneficial to plant growth. It contains no phosphate, nitrate or fertilizers that may lead to unwanted algae growth. A 100mL bottle treats 160L (40 gallons) for 4-6 months. House plants also derive similar benefits



Seachem Flourish 250ml (8.5 fl.oz).

Weight: 2.00 

Seachem Flourish 2L (67.6 fl. oz.). 
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Seachem Flourish 2L (67.6 fl. oz.). Is a growth stimulator for aquarium plant stems and leaves. It contains a broad spectrum of essential vitamins, trace elements and amino acids. Flourish in gluconate iron, manganese, calcium, magnesium, potassium, inositol, choline vitamin B12 and biotin and other factors determined to be beneficial to plant growth. It contains no phosphate, nitrate or fertilizers that may lead to unwanted algae growth. A 100mL bottle treats 160L (40 gallons) for 4-6 months. House plants also derive similar benefits. This item is a special order item only



Seachem Flourish 2L (67.6 fl. oz.)

Weight: 12.00 

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Seachem Flourish 500 ml (17 fl. oz.).  
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Seachem Flourish 500 ml (17 fl. oz.). Is a growth stimulator for aquarium plant stems and leaves. It contains a broad spectrum of essential vitamins, trace elements and amino acids. Flourish in gluconate iron, manganese, calcium, magnesium, potassium, inositol, choline vitamin B12 and biotin and other factors determined to be beneficial to plant growth. It contains no phosphate, nitrate or fertilizers that may lead to unwanted algae growth. A 100mL bottle treats 160L (40 gallons) for 4-6 months. House plants also derive similar benefits



Seachem Flourish 500 ml (17 fl. oz.)

Weight: 2.00 

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Seachem Flourish Excel 100ml (3.4fl.oz) 
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Seachem Flourish Excel 100ml (3.4fl.oz) is a simple source of readily available organic carbon. One can derive a substantial benefit with the use of flourish excel either alone or combined with CO2 injection. Flourish Excel also has iron reducing properties which make the ferrous iron more available to aquarium plants. A 100ml bottle treats 80L (20 gallons) for 1-2 months…



Seachem Flourish Excel 100ml (3.4fl.oz)

Weight: 0.55 

Seachem Flourish Excel 20L (5.3 gal.).  
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Seachem Flourish Excel 20L (5.3 gal.). Is a simple source of readily available organic carbon. 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 (fe+2) of iron, which is more easily utilized than the ferric state (fe+3). A 100mL bottle treats 80L (20 gallons) for 1 to 2 months. This item is a special order item that is drop shipped direct from Seachem.…
Weight: 45 Lbs

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Seachem Flourish Excel 20L (5.3 gal.).

Weight: 45.00 

Seachem Flourish Excel 250 ml.- 8.5 oz 
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Seachem Flourish Excel 250 ml.- 8.5 oz. is a simple source of readily available organic carbon. One can derive a substantial benefit with the use of flourish excel either alone or combined with CO2 injection. Flourish Excel also has iron reducing properties which make the ferrous iron more available to aquarium plants. A 100ml bottle treats 80L (20 gallons) for 1-2 months…



Seachem Flourish Excel 250 ml.- 8.5 oz

Weight: 2.00 

Seachem Flourish Excel 2L (67.6 fl.oz) 
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Seachem Flourish Excel 2L (67.6 fl.oz) is a simple source of readily available organic carbon. One can derive a substantial benefit with the use of flourish excel either alone or combined with CO2 injection. Flourish Excel also has iron reducing properties which make the ferrous iron more available to aquarium plants. A 100ml bottle treats 80L (20 gallons) for 1-2 months. This item is a special order item only.…
Weight: 4.25 Lbs.



Seachem Flourish Excel 2L (67.6 fl.oz)

Weight: 12.00 

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Seachem Flourish Excel 4L (1.1 gal.) 
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Seachem Flourish Excel 4L (1.1 gal.) is a simple source of readily available organic carbon. One can derive a substantial benefit with the use of flourish excel either alone or combined with CO2 injection. Flourish Excel also has iron reducing properties which make the ferrous iron more available to aquarium plants. A 100ml bottle treats 80L (20 gallons) for 1-2 months. This item is a special order item only.…

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Seachem Flourish Excel 4L (1.1 gal.)

Weight: 13.00 

Seachem Flourish Excel 500ml (17 fl.oz). 
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Seachem Flourish Excel 500ml (17 fl.oz). is a simple source of readily available organic carbon. One can derive a substantial benefit with the use of flourish excel either alone or combined with CO2 injection. Flourish Excel also has iron reducing properties which make the ferrous iron more available to aquarium plants. A 100ml bottle treats 80L (20 gallons) for 1-2 months



Seachem Flourish Excel 500ml (17 fl.oz).

Weight: 1.25 

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Seachem Flourish Iron 100ml (3.4fl.oz) 
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Seachem Flourish Iron 100ml (3.4fl.oz) is a highly concentrated (10,000mg-L) iron gluconate supplement. It should be used if the requirements for iron exceed those that Flourish provide at the recommended dose. Once dosed the iron is maintained in the ferrous (fe+2) state for an extended period due to the polygluconate complexation which allows the plants to use the iron far easier than from EDTA sources



Seachem Flourish Iron 100ml (3.4fl.oz)

Weight: 1.00 

Seachem Flourish Iron 20L (5.3 gal.) 
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Seachem Flourish Iron 20L (5.3 gal.) is a highly concentrated (10,000mg-L) iron gluconate supplement. It should be used if the requirements for iron exceed those that Flourish provide at the recommended dose. Once dosed the iron is maintained in the ferrous (fe+2) state for an extended period due to the polygluconate complexation which allows the plants to use the iron far easier than from EDTA sources. This item is a special order item that is drop shipped direct from Seachem

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Seachem Flourish Iron 20L (5.3 gal.)

Weight: 18.00 

Seachem Flourish Iron 250ml (8.5 fl.oz)  
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Seachem Flourish Iron 250ml (8.5 fl.oz) is a highly concentrated (10,000mg-L) iron gluconate supplement. It should be used if the requirements for iron exceed those that Flourish provide at the recommended dose. Once dosed the iron is maintained in the ferrous (fe+2) state for an extended period due to the polygluconate complexation which allows the plants to use the iron far easier than from EDTA sources



Seachem Flourish Iron 250ml (8.5 fl.oz)

Weight: 2.00 

Seachem Flourish Iron 2L 
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Seachem Flourish Iron 2L (67.6 fl.oz) is a highly concentrated (10,000mg-L) iron gluconate supplement. It should be used if the requirements for iron exceed those that Flourish provide at the recommended dose. Once dosed the iron is maintained in the ferrous (fe+2) state for an extended period due to the polygluconate complexation which allows the plants to use the iron far easier than from EDTA sources. This item is a special order item only



Seachem Flourish Iron 2L

Weight: 9.00 

Seachem Flourish Iron 500ml  
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Seachem Flourish Iron 500ml (17 fl.oz) is a highly concentrated (10,000mg-L) iron gluconate supplement. It should be used if the requirements for iron exceed those that Flourish provide at the recommended dose. Once dosed the iron is maintained in the ferrous (fe+2) state for an extended period due to the polygluconate complexation which allows the plants to use the iron far easier than from EDTA sources



Seachem Flourish Iron 500ml

Weight: 2.00 

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Seachem Flourish Potassium 100ml (3.4fl.oz)  
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Seachem Flourish Potassium 100ml (3.4fl.oz) contains 40,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is one of the vital elements essential to sustain a vigorous level of plant growth. Potassium can be depleted in a rapidly growing aquarium or when a source water has a low mineral content. In these cases potassium can become the limiting factor to growth. Use FLourish Potassium to prevent potassium depletion and to maintain the highest level of growth. A 100 ml bottle treats 80L (20 gallons) for 4-6 months



Seachem Flourish Potassium 100ml (3.4fl.oz)

Weight: 1.00 

Seachem Flourish Potassium 20L (5.3 gal.) contains 40,000 mg/L of potassium suitable for the natural freshwater aquarium 
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Seachem Flourish Potassium 20L (5.3 gal.) contains 40,000 mg/L of potassium suitable for the natural freshwater aquarium(5.3 gal.) contains 40,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is one of the vital elements essential to sustain a vigorous level of plant growth. Potassium can be depleted in a rapidly growing aquarium or when a source water has a low mineral content. In these cases potassium can become the limiting factor to growth. Use FLourish Potassium to prevent potassium depletion and to maintain the highest level of growth. A 100 ml bottle treats 80L (20 gallons) for 4-6 months. This item is a special order item that is drop shipped direct from Seachem

Please email for exact shipping price



Seachem Flourish Potassium 20L (5.3 gal)

Weight: 22.00 

Seachem Flourish Potassium 250ml (8.5 fl.oz) 
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Seachem Flourish Potassium 250ml (8.5 fl.oz) contains 40,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is one of the vital elements essential to sustain a vigorous level of plant growth. Potassium can be depleted in a rapidly growing aquarium or when a source water has a low mineral content. In these cases potassium can become the limiting factor to growth. Use FLourish Potassium to prevent potassium depletion and to maintain the highest level of growth. A 100 ml bottle treats 80L (20 gallons) for 4-6 months



Seachem Flourish Potassium 250ml (8.5 fl.oz)

Weight: 2.00 

Seachem Flourish Potassium 4L (1.1 gal.). 
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Seachem Flourish Potassium 4L (1.1 gal.). contains 40,000 mg-L of potassium suitable for the natural freshwater aquarium. Potassium is one of the vital elements essential to sustain a vigorous level of plant growth. Potassium can be depleted in a rapidly growing aquarium or when a source water has a low mineral content. In these cases potassium can become the limiting factor to growth. Use FLourish Potassium to prevent potassium depletion and to maintain the highest level of growth. A 100 ml bottle treats 80L (20 gallons) for 4-6 months. This item is a special order item only

Please email for exact shipping price



Seachem Flourish Potassium 4L (1.1 gal.)

Weight: 18.00 

Seachem Flourish Potassium 500ml (17 fl.oz) contains 40,000 mg-L of potassium  
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Seachem Flourish Potassium 500ml (17 fl.oz) contains 40,000 mg-L of potassium suitable for the natural freshwater aquarium. Potassium is one of the vital elements essential to sustain a vigorous level of plant growth. Potassium can be depleted in a rapidly growing aquarium or when a source water has a low mineral content. In these cases potassium can become the limiting factor to growth. Use FLourish Potassium to prevent potassium depletion and to maintain the highest level of growth. A 100 ml bottle treats 80L (20 gallons) for 4-6 months



Seachem Flourish Potassium 500ml (17 fl.oz)

Weight: 2.00 

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Seachem Flourish TABS 10 tab pack 
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Seachem Flourish TABS 10 tab pack. 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, chorine, vitamin B12, biotin, and other factors determined to be to essential to plant roots. They contain no phosphate or nitrate which would promote algae prolification. Each pack of ten tablets treats a 30 x 75cm (12' x 30') plant bed twice



Seachem Flourish TABS 10 tab pack

Weight: 1.00 

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Seachem Flourish Trace 20L (5.3 gal.). 
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Seachem Flourish Trace 20L (5.3 gal.). Supplies a broad range of trace elements demonstrated to be necessary for proper plant growth. Trace elements are usually depleted by utilization, oxidation and precipitation, thus it is important to restore them on a regular basis. Flourish Trace may be used alone or in conjunction with Flourish. Flourish Trace is Nitrate-Phosphate free. A 250ml bottle will treat 200L (50 gallons) for 2 to 4 months. This item is a special order item that is drop shipped direct from Seachem

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Seachem Flourish Trace 20L (5.3 gal.)

Weight: 19.00 

Seachem Flourish Trace 250 ml (8.5 fl. oz..) 
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Seachem Flourish Trace 250 ml (8.5 fl. oz..). Supplies a broad range of trace elements demonstrated to be necessary for proper plant growth. Trace elements are usually depleted by utilization, oxidation and precipitation, thus it is important to restore them on a regular basis. Flourish Trace may be used alone or in conjunction with Flourish. Flourish Trace is Nitrate-Phosphate free. A 250ml bottle will treat 200L (50 gallons) for 2 to 4 months



Seachem Flourish Trace 250 ml (8.5 fl. oz..)

Weight: 2.00 

Seachem Flourish Trace 2L (67.6 fl. oz..). 
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Seachem Flourish Trace 2L (67.6 fl. oz..). Supplies a broad range of trace elements demonstrated to be necessary for proper plant growth. Trace elements are usually depleted by utilization, oxidation and precipitation, thus it is important to restore them on a regular basis. Flourish Trace may be used alone or in conjunction with Flourish. Flourish Trace is Nitrate-Phosphate free. A 250ml bottle will treat 200L (50 gallons) for 2 to 4 months. This item is a special order item only



Seachem Flourish Trace 2L (67.6 fl. oz..)

Weight: 12.00 

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Seachem Fluorite 7kg (15.4 lbs) 
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Seachem Fluorite 7kg (15.4 lbs). is a specially fracted, iron rich, stable porous clay gravel for the natural planted aquarium. Although it may be mixed with other gravels, Fluorite is best used as the sole substrate bed. Any mixture should be at least half Fluorite. Gravel modifiers are not necessary. Fluorite is not chemically coated or treated and will not alter the pH of the water. Each 7kg (15.4lbs) is sufficient for about a 2 inch bed in a typical 10 gallon tank. Recommended use is 1 kg for every 200cm^2 (31in.^2) of tank bottom

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Seachem Fluorite 7kg (15.4 lbs)

Weight: 33.00 

Seachem Onyx Gravel 7kg (15.4 lbs). 
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Onyx Sand™ is the ideal substrate for any type of aquarium environment; whether you have reef, planted marine, or freshwater planted aquaria, this naturally black sand will perfectly complement and enhance the appearance of your tank. Onyx Sand™ provides not only iron and other minerals but supports optimal KH levels for freshwater planted aquariums. Onyx Sand™ is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels or sands. Gravel modifiers are not necessary. Onyx Sand™ is not chemically coated or treated but does have a slight buffering capacity. Also available as a gravel.

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Seachem Onyx Gravel 7kg (15.4 lbs).

Weight: 33.00 

Seachem Red Flourite. 7 kg (15.4 lbs.) 
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Seachem Red Flourite. 7 kg (15.4 lbs.) is a specially fracted, iron rich, stable porous clay gravel for the natural planted aquarium. Although it may be mixed with other gravels, Fluorite is best used as the sole substrate bed. Any mixture should be at least half Fluorite. Gravel modifiers are not necessary. Fluorite is not chemically coated or treated and will not alter the pH of the water. Each 7kg (15.4lbs) is sufficient for about a 2 inch bed in a typical 10 gallon tank. Recommended use is 1 kg for every 200cm^2 (31in.^2) of tank bottom.

Please email for exact shipping cost



Seachem Red Flourite. 7 kg (15.4 lbs.)

Weight: 33.00 

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