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- Seachem Flourish 100ml + Flourish Excel + 100ml + Flourish Potassium + 100ml Flourish Iron 100ml + Flourish Trace 100ml

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Price: 38,99Euro [TaxInc]
Availability: Immediately Available

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Product : Seachem Flourish 100ml + Flourish Excel 100ml + Flourish Potassium 100ml + Flourish Iron 100ml + Flourish Trace 100ml


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.


Use 1 capful (5 mL) for each 250 L (60 gallons*) once or twice a week. For smaller doses, please note that each cap thread is approximately 1 mL. Refrigeration after opening is recommended but not required.

Flourish Excel:

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.


On initial use or after a major (> 40%) water change, use 1 capful (5 mL) for every 40 L (10 gallons*). Thereafter use 1 capful for every 200 L (50 gallons*) daily or every other day. Dosing may be slowly increased in high-growth aquariums. For smaller dosing please note that each cap thread is approximately 1ml.



Flourish Potassium:

Flourish Potassium contains 40,000 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.

Elemental potassium is present at a concentration of 50,000 ppm (e.g 5%). Archaic fertilizer laws require us to list potassium in terms of equivalence to a material that is not present (K2O) rather than the more scientificaly sound method of simple elemental equivalence.


Use 1 capful (5 ml) for every 125 l (30 gallons*). This dose raises potassium by 2 mg/l. Repeat operation 2 - 3 times per week or as needed (in response to signs of potassium deficiency in older leaves which includes: chlorosis (yellowing), necrosis (death/browning), and weak stems and roots.


Flourish Potassium:

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.


Use 1 capful (5 ml) for each 200 L (50 gallons*) or as required to maintain about 0.10 mg/l iron. For smaller doses please note that each cap thread is about 1 ml. Use MultiTest: Iron test kit to monitor iron concentrations. Use as needed to combat signs of iron deficiency (usually seen in new growth) which include: chlorosis (yellowing) of tissue between veins and short and slender stems.


Flourish Trace:

Flourish Trace supplies a broad range of trace elements demonstrated to be necessary for proper plant health and growth (see right panel for signs of deficiencies). 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.


Use 1 capful (5 mL) for every 80 L (20 gallons*) twice a week.

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