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Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml
Seachem Flourish Excel - 100ml

Seachem Flourish Excel - 100ml

Seachem Flourish Excel - 100ml

$5.86

(1,681 reviews)

SeaChem 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). A very popular product with our keen plant growers! Directions On initial use or after a major (>40%) water change, use 1 capful (5ml) for every 40L (10 Gallons). Thereafter use 1 capful for every 200L (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 1 mL. Do not overdose. 500ml treats 400L (100 Gallons) for 1-2 months.

SeaChem 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). A very popular product with our keen plant growers! Directions On initial use or after a major (>40%) water change, use 1 capful (5ml) for every 40L (10 Gallons). Thereafter use 1 capful for every 200L (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 1 mL. Do not overdose. 500ml treats 400L (100 Gallons) for 1-2 months.

(1,681 reviews)

SeaChem 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). A very popular product with our keen plant growers! Directions On initial use or after a major (>40%) water change, use 1 capful (5ml) for every 40L (10 Gallons). Thereafter use 1 capful for every 200L (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 1 mL. Do not overdose. 500ml treats 400L (100 Gallons) for 1-2 months.

SeaChem 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). A very popular product with our keen plant growers! Directions On initial use or after a major (>40%) water change, use 1 capful (5ml) for every 40L (10 Gallons). Thereafter use 1 capful for every 200L (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 1 mL. Do not overdose. 500ml treats 400L (100 Gallons) for 1-2 months.

$5.86 - $24.85

in 33 offers

The lowest price for Seachem Flourish Excel - 100ml right now is $5.86 at peta2z.com, compared across 30 retailers.

The all-time low was $4.19 on 12 Aug 2025 — today's price is 40% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 12 May 2026.

Size:

2 L
4 L
250 ml
500 ml

Price comparison

Price data powered by pricesAPI.io

Last updated at 12/05/2026 18:19:21

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$16.10

Seachem Flourish Excel 100 ml, 100 ml

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

peta2z.com

$5.86

Seachem, Seachem Laboratories Flourish Excel Plant Supplement, 1 Each/3.4 Oz

Delivery $16.12

aquateesfishland.com.au

$9.00

Seachem Flourish Excel 100ml

Nature Aquariums

$9.95

Seachem Flourish Excel 100ml

Coburg Aquarium

$9.95

Seachem Flourish Excel 100ml

Apex Aquatic

$9.95

Seachem Flourish Excel 100ml

Bespoke Aquariums

$10.00

Seachem Flourish Excel

Delivery between 21–22 May $10.91

Hurstville Aquarium

$11.95

Seachem Flourish Excel 100ml

Delivery between 18–22 May $9.50

Iwaquariums

$11.95

Seachem Flourish Excel 100ml - IWAquariums

Delivery $9.90

BIG W

$12.00

Seachem Flourish Excel 100ml (SC45506)

Delivery $9.99

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

dimensions4.1 x 4.1 x 12.4 cm

Price comparison

Updated 28 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Amazon.com.au

$16.10

Seachem Flourish Excel 100 ml, 100 ml

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

peta2z.com

$5.86

Seachem, Seachem Laboratories Flourish Excel Plant Supplement, 1 Each/3.4 Oz

Delivery $16.12

aquateesfishland.com.au

$9.00

Seachem Flourish Excel 100ml

Nature Aquariums

$9.95

Seachem Flourish Excel 100ml

Coburg Aquarium

$9.95

Seachem Flourish Excel 100ml

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

dimensions4.1 x 4.1 x 12.4 cm

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