Growth Technology Liquid Iron is an iron supplement for plants. It will boost colour and strength for the promotion of quality flowers and fruit, and increased resistance to disease. Iron deficiency symptoms include:

  • Yellowing between veins of younger leaves and on the growing tip.
  • Iron deficiency is often a problem with plants growing on calcareous soils or gravel grow beds.

GT Liquid Iron typical analysis

  • Iron from iron sulphate 25 g/L
  • Iron from DTPA chelate 5 g/L
  • Iron from EDDHA chelate 1 g/L
  • Total Iron 31 g/L

An Iron Supplement for Aquaponics as well as Hydroponics

GT Liquid Iron has been deemed safe for Aquaponics by the manufacturer. Liquid Iron is a superior iron supplement to iron chelate powder as it is readily absorbed by plants, however it will not supplement your aquaponic system for as long as DTPA Iron Chelate.


SKU 124233
Barcode # 9313656613649
Brand Growth Technology
Shipping Weight 0.6800kg
Shipping Width 0.080m
Shipping Height 0.080m
Shipping Length 0.190m
Shipping Cubic 0.001216000m3
Type Additives


Limited Warranty - This product has been stored in a controlled enviroment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim. If you have purchased this product and have concerns, please contact us by using a Return Merchandise Authorisation form.

This calculator will give you the delivery charges for this product only. Once you place all the items you wish to buy in the cart, the combined shipping price will be shown, including Free Shipping if you are eligible.

What is the eligibility for Free Shipping?

As long as your delivery address is in our free shipping zone, and your order is above the minimum value for free shipping, your shipping will be free. For full details see our shipping information here.