Last updated at 09/06/2026 01:42:09
Seachem Flourish Iron 4L, 1 Liter 4 L/ 1 fl. Gallon
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Seachem Flourish Iron 4L
Seachem Flourish IRON 4L - Plant FertiliserBy Aquarium Kingdom
Delivery between Sat – Mon $8.95
Flourish Iron 4 L
Delivery between 11–17 June $38.69
Seachem Flourish Iron 4l
Delivery between 11–18 June $9.50
Seachem Flourish Iron 4L - IWAquariums
Free delivery
Seachem Flourish Iron 4L (SC47906)
Delivery $10
Seachem Flourish Iron 4L (SC47906)
Delivery $14.99
Seachem Flourish Iron 4L (SC47906)
Delivery between 12–22 June $12.95
Flourish Iron 4l, 1 Liter 4 L/ 1 Fl. Gallon
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!
Seachem Flourish Iron 4L, 1 Liter 4 L/ 1 fl. Gallon
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!
Seachem Flourish Iron 4L
Seachem Flourish IRON 4L - Plant FertiliserBy Aquarium Kingdom
Delivery between Sat – Mon $8.95
Flourish Iron 4 L
Delivery between 11–17 June $38.69
Seachem Flourish Iron 4l
Delivery between 11–18 June $9.50
Highly concentrated iron for planted aquariums. The best form of iron for absorption through the leaves. Prevents leaf yellowing. Flourish Iron is a highly concentrated iron gluconate supplement. It is suitable as an iron supplement when the supply of Flourish is insufficient. Thanks to its formula, Flourish Iron remains in its iron form (Fe2+) for a long time after being added to the aquarium, unlike formulas in the form of iron(III), which must be converted by the plant at the roots to benefit all parts of the plant. This assimilation process requires energy and thus leads to a loss of plant growth. 4 liters treat 240,000 liters.
Highly concentrated iron for planted aquariums. The best form of iron for absorption through the leaves. Prevents leaf yellowing. Flourish Iron is a highly concentrated iron gluconate supplement. It is suitable as an iron supplement when the supply of Flourish is insufficient. Thanks to its formula, Flourish Iron remains in its iron form (Fe2+) for a long time after being added to the aquarium, unlike formulas in the form of iron(III), which must be converted by the plant at the roots to benefit all parts of the plant. This assimilation process requires energy and thus leads to a loss of plant growth. 4 liters treat 240,000 liters.
Seachem Flourish Iron 4L Plant Fertiliser
Highly concentrated iron for planted aquariums. The best form of iron for absorption through the leaves. Prevents leaf yellowing. Flourish Iron is a highly concentrated iron gluconate supplement. It is suitable as an iron supplement when the supply of Flourish is insufficient. Thanks to its formula, Flourish Iron remains in its iron form (Fe2+) for a long time after being added to the aquarium, unlike formulas in the form of iron(III), which must be converted by the plant at the roots to benefit all parts of the plant. This assimilation process requires energy and thus leads to a loss of plant growth. 4 liters treat 240,000 liters.
Highly concentrated iron for planted aquariums. The best form of iron for absorption through the leaves. Prevents leaf yellowing. Flourish Iron is a highly concentrated iron gluconate supplement. It is suitable as an iron supplement when the supply of Flourish is insufficient. Thanks to its formula, Flourish Iron remains in its iron form (Fe2+) for a long time after being added to the aquarium, unlike formulas in the form of iron(III), which must be converted by the plant at the roots to benefit all parts of the plant. This assimilation process requires energy and thus leads to a loss of plant growth. 4 liters treat 240,000 liters.
in 12 offers
The lowest price for Seachem Flourish Iron 4L Plant Fertiliser right now is $93.00 at aquateesfishland.com.au, compared across 11 retailers.
The all-time low was $83.70 on 4 Dec 2025 — today's price is 11% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 9 June 2026.