SEACHEM FLOURISH IRON
$9.99 – $15.99
Seachem Flourish Iron ™ is a highly concentrated (10,000 mg/L) ferrous iron gluconate supplement. Plants are able to much more easily derive a benefit 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.
Iron is immobile in plants. This means that plants cannot divert iron from older leaves to new ones. Therefore, deficiency symptoms appear first on new or young leaves. Because plants use iron to produce chlorophyll, a lack of iron results in chlorosis, or yellowing, of the younger leaves. Stems may also appear short and slender. If the deficiency is severe and prolonged, each new leaf emerges lighter in color than the preceding leaf.
When choosing an iron supplement, it is important to know the distinction between the two forms of iron. The iron will be in one of two oxidation states: ferrous having a +2 charge, or ferric having a +3 charge. Ferrous iron, the preferred iron form and is soluble in water at any pH. Ferric iron, however, is only soluble below a pH of around 5.5; but if the pH is higher than 5.5, which more than likely it will be in a planted aquarium, the ferric iron will become insoluble and precipitate, settling in the root zone. Once this occurs, foliar absorption becomes impossible.
To overcome this precipitation, competing products employ a chelate of ferric iron: iron-EDTA.
While this does keep it soluble, it has a couple of drawbacks with respect to foliar uptake of iron. (1) Iron-EDTA bonding is very strong, thus very little of the iron will be available to the plants over a given time frame and (2) Physiological energy must be expended by the plant in order to extract the ferric iron from EDTA-iron and then convert (reduce) it to the ferrous form. Our approach is different in that we use a complex (not chelate) of ferrous iron in Flourish Iron.
Flourish Iron is a highly concentrated (10,000 mg/L) ferrous iron gluconate supplement. Plants are able to much more easily derive a benefit 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.
Dry goods orders are shipped via US Postal Service or UPS to the address provided at checkout based on the selection made in your website shopping cart. Product is carefully packed to help prevent any damage during shipping. Once processed you will receive a shipment notification via email with tracking number, and delivery notification. Please allow 48 hours for processing after your order is placed.
Perishable items (i.e. live plants, refrigerated/frozen foods) are shipped via US Postal Service 2-3 day to the address provided at checkout for a $25.00 flat rate charge. Items are packed with secure packing material and heat, cold, or Cryo packs as needed to maintain safe temperatures during transit. If one or more perishable items are in the shopping cart at checkout the $25.00 perishable shipping charge will automatically appear and need to be selected. Once processed you will receive a shipment notification via email with tracking number. Please allow 48 hours for processing after your order is placed.
Livestock (i.e. fish, invertebrates, coral) are shipped via UPS Overnight to the address provided at checkout for a $55.00 flat rate charge. Livestock is packed in insulated styrofoam boxes with secure packing material and heat, cold, or Cryo packs as needed to maintain safe temperatures during transit. If one or more livestock items are in the shopping cart at checkout the $55.00 livestock shipping charge will automatically appear and need to be selected. Livestock is shipped Monday through Wednesday ONLY (no weekend delivery is available) weather permitting, and we reserve the right to delay shipping until conditions are appropriate for safe arrival. Once your order is placed we will contact you to arrange the best shipping date based on these criteria. Someone must be available to receive the livestock order on the first delivery attempt. Once processed you will receive a shipment notification via email with tracking number. Please allow 48 hours for processing after your order is placed.
For mixed dry goods/perishable & livestock orders items will be shipped via their corresponding shipping methods outlined above. Dry goods will be shipped via US Postal Service or UPS based on your selection and checkout, while livestock will ship via UPS Overnight for a $55.00 flat rate charge. You will receive separate notifications and tracking numbers for the dry goods and livestock. Please note due to different carriers and shipping methods dry goods and livestock may arrive on different days.
