Flourish Iron 250mL - Seachem
Highly concentrated (10,000 mg/L) iron source for the planted aquarium Flourish Iron is a highly concentrated (10,000 mg/L) ferrous iron gluconate supplement. Plants are able to much more easily derive a bene?t from Flourish Iron because ferrous iron gluconate is already in the ferrous form so they do not expend energy reducing it. Despite what other manufacturers may intimate, gluconate is not harmful to plants or fish. In fact, ferrous gluconate is better suited to foliar feeding than is iron-EDTA owing to the relatively weaker iron-gluconate bonding vs. iron-EDTA bonding. In addition, ferrous gluconate has the added bonus of being a source of carbon.
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We close from 23rd Dec 2025 until 12th Jan 2026. Orders placed after 23 Dec 2025 will be dispatched once we reopen.
Delivery takes 3-12 business days after dispatch from our fulfillment center, unless stated otherwise. In most cases, your order will arrive before the 12-day mark; however, some items may take up to the full 12 working days.
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