2mm and 6mm fish food are now in stock as at 1 Jan 2023 December View Fish Food

Prac Aqua Iron Chelates EDDHA 200g

/5 Stars
4 Reviews
Prac Aqua
SKU Iron Chel6 - 200g
Soluble iron chelates (6% Fe) for the control of iron deficiencies in plants. EDDHA is the only form of iron chelates recommended for aquaponics use. It is readily available to plants at the pH level used in aquaponics systems, & therefore very effective. . . . read more

Selected Size/Selection: 200 grams

200 grams
$26.25 (AUD)

Out of Stock



Product Details

Iron is a crucial nutrient for plants, being involved in chlorophyll production, among other major functions.

The most obvious sign of iron deficiency in plants is a yellowing of the leaves, called chlorosis.  If left untreated, the plants will eventually die.

This soluble EDDHA chelated iron (6% Fe) helps manage and avoid iron deficiencies in your aquaponics system.  (If you are using water that is already high in iron, then you probably won't have much of a problem with deficiency in the plants, so won't need to use additives.)

EDDHA iron also aids in the absorption of other vital elements such as calcium, so it is a necessary supplement to help avoid these deficiencies, too.  For example, if your plants seem calcium deficient but aren't responding to calcium supplements, you might need to add some EDDHA iron as well, to help the plants absorb the calcium.

EDDHA is the only form of iron chelates recommended for aquaponics use:

  • It is readily available to plants at the pH levels used in aquaponics systems, and is therefore very effective. Other types of iron chelates, such as EDTA, are not as bio-available at the pH levels used in aquaponics systems, and are therefore less effective.
  • It can be added to the water in the aquaponics system, or used as a foliar spray. Other types can be used only as foliar spray.

Each jar contains 200 g of EDDHA iron chelate.  When needed, add it to your system at a rate of 30 g per 1000 L of water in the whole system, putting it in as far away from the fish tank as possible.

Putting this iron in your system will turn the water a reddish-brown colour.  This is not the least bit harmful to your fish or plants.

Avoid losing your plants to iron deficiency!  Get some of this excellent EDDHA chelated iron into your system.

Additional Information


Murray Hallam is probably the best-known face in the world-wide Aquaponics movement. Murray is by nature an innovator and in his Research & Development facility has perfected many new methodologies for commercial farm Aquaponic systems.


Learn Aquaponics

At Practical Aquaponics, we have a range of information suitable for the novice to the expert. Browse our blog, register for our Aquaponics Courses, Workshops and Seminars or buy kits, books, DVDs and many other aquaponics necessities in our shop.


Aquaponics Kits & DIY

Proven and tested, there are hundreds of our kits in operation in every state of Australia and we have exported our kits to the USA, Hong Kong, New Zealand and Nassau. The wonderful thing about Aquaponics is that almost anyone can participate and get to grow some clean, healthy vegetables and fish.



Our Blog contains a wealth of information spanning a wide range of Aquaponic topics, from general news to some of the well-kept secrets to success. This is a must view area for everyone interested in Aquaponics from the budding beginner to the seasoned aquaponics farmer.


Featured Products

Aquaponics Grow Bed 585 Litres

Aquaponics Grow Bed 585 Litres

Our 585 Litre Grow Bed Is Back! Manufactured Specifically For Aquaponics. Made In Australia From Fibreglass With Marine-grade Gel Coating And Resins. ...

from $847.00 buy online

Indy 23 System - Plans And Building Instructions

Indy 23 System - Plans And Building Instructions

Feed Four People Year-round With The Indy 23 Aquaponic System! Build Your Own, Using This Step-by-step Instruction Set. ...

from $395.00 buy online

Consultation With Murray Hallam

Consultation With Murray Hallam

If You're Working On An Aquaponics Project (or Thinking Of It), A One-hour Consultation With Murray Hallam Can Help Clear Up Some Of The Questions You ...

from $170.00 buy online

Call our team today on 07 4156 5368

For all things Aquaponics ... Practical Aquaponics is your number #1 choice for products and information. Give us a call or drop us an email about your farm project today.