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Seachem Flourish Freshwater Plant Comparison - October 2025
| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3 Best Value  9.6Exceptional |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelSeachem Flourish Freshwater Plant Supplement - Aquarium Element and Nutrient Blend 2L / 67.6 oz | Model Seachem Flourish Excel 500 ml | Model Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 10 ct |
BrandSeachem | Brand Seachem | Brand Seachem |
Reviews | Reviews | Reviews |
Tech Specs | ||
product dimensions3.25 x 5.75 x 9.5 inches 4.3 Pounds | product dimensions 7.6 x 1.5 x 1.5 inches 1 Pounds | product dimensions 7.91 x 5 x 0.59 inches 0.81 ounces |
departmentUnisex-Adult | department Unisex-Adult | department Unisex-Adult |
Review- | Review - | Review |
Available On   | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1SeachemSeachem Flourish Freshwater Plant Supplement - Aquarium Element and Nutrient Blend 2L / 67.6 oz
Why we love it
Rich in essential plant nutrients.
Easy dosing with capful measurement.
Safe for shrimp and invertebrates.
Main highlights- WATER TREATMENT: For best results, use 1 capful (5 mL) of Flourish for each 250 L (60 US gallons) once or twice a week. For smaller doses, please note that each cap thread is approximately 1 mL. Refrigeration is recommended 3 months after opening.
- SUPPLEMENT: Seachem Flourish is a comprehensive plant supplement for the natural freshwater aquarium, containing a rich assortment of important micro elements, trace elements, and other nutrients.
- SOLUTION COLOR: It is normal for the color of Seachem’s Flourish to vary by batch as the solution color is dependent on the temperature at which the product was blended. This variation in color is of no consequence to the function of Flourish.
- SAFETY: Seachem Flourish is safe to use for invertebrates such as shrimp, but is designed to be used in conjunction with other macro and micro-nutrient supplements in aquariums only.
- ELEMENTS: In order to benefit your aquatic plants and help your freshwater environment thrive, Seachem Flourish contains potassium, calcium, magnesium, iron, and other important elements.
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9.7
2
SeachemSeachem Flourish Excel 500 ml
Main highlights- TREATMENT: On initial use or after a major (> 40%) water change, use 1 capful of Flourish Excel (5 mL) for every 40 L (10 US gallons). Thereafter, use 1 capful for every 200 L (50 US gallons) daily or every other day. For smaller dosing please note that each cap thread is approximately 1 mL.
- SAFETY: Flourish Excel is completely safe for fish, however if you have Anacharis in an aquarium in which you are dosing Flourish Excel, then it is recommended to use it every other day rather than daily.
- PHOTOSYNTHESIS: Plants must produce longer chain carbon compounds (photosynthetic intermediates). By dosing with Flourish Excel you bypass the involvement of chain carbon compounds, and introduce the already finished, structurally similar compounds.
- IRON PRODUCTION: Flourish Excel also possesses iron reducing properties, thus promoting the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).
- CARBON PRODUCTION: All plants require a source of carbon, and Flourish Excel is a great and convenient source of bioavailable organic carbon.
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9.6
3Seachem24% Off
Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 10 ct
Why we love it
Stimulates plant growth
Contains essential nutrients
Time released fertilization
Main highlights- VITAMINS: Seachem Flourish Tabs 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.
- TANK USE: Insert one Flourish Tab in the gravel for every 10–15 cm (4–6 in.) radius. A standard 10 gallon aquarium requires 6 tabs. Distribute the tablets evenly throughout the gravel bed, pushing each tablet midway into the gravel bed.
- NUTRIENTS: When inserted into the gravel, Seachem Flourish Tabs provide direct, time-released fertilization to the plants’ root zone. Nutrients are slowly made available through enzymatic action of the plants’ roots on the tabs.
- GROWTH TREATMENT: Seachem Flourish Tabs are growth stimulating tablets for plant roots which contain essential trace elements, amino acids, and vitamins.
- COMPLETE MAINTENANCE: For optimal plant growth, add new Flourish Tabs to the aquarium once every three to four. Seachem Flourish Tabs will not alter pH, however, in very soft or unbuffered water, they have slightly acidic properties similar to peat moss.
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Value for money
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