Aquaponics Tips - Iron Deficiencies

Nutrient supplied to plants in Aquaponics are from the fishes and the fish food dissolved. These sources of nutrient lack Iron, in Aquaponics Iron deficiencies result in yellowing of leaves.

There are commercial products that address this and there also some methods that are practice of old.

Chelated Iron is one common commercial product use, it is added to water via grow beds every about 2 ~ 3 weeks or so, this will cure plants of the Yellowing Leaves symptoms.

Blood meal also a source of Iron can be added to provide Iron to plants.

Old Farmers practice rusty nails and scrap metals in a bucket of water, and pouring it near tree trunk that have yellowing leaves interest me.
Does it work, those old timer may not heard of Chelated Iron, but they sure do have a lot of nails and scraps.

To practice what those farmers did, I collected scrap iron from around my back yard and put it in the tank.
At first I put it in the filter, but recently I found some long iron rod, those that for construction work they are too long for the filter so I use PVC water pipe to hold them.

What’s needed is a PVC pipes big and long enough for the job and 2 end caps. Drill holes along the pipe and place iron rod inside, capped the pipe and throw it in.

You can attach a string to it for easy retrieval or just without.
Photo shows the PVC pipe and Iron inside and this one with it in the water.

3 comments:

  1. A point of interest about iron is that if your PH is above 8 then your plants will not be able to access the iron in the water. It becomes more biologically available as the PH drops.

    So even if you have lots of iron in your water, if your PH is above 8 then it will be very difficult for your plants to be able to access it.

    Cheers, Andrew.

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  2. Thanks, for the comment.

    PH 8 is more alkaline, so something happen to the plants to make it shut off iron intake. Important info for others to take note.

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  3. SO IS IT SAFE FOR ME TO USE IRON BARS TO SUPPLEMENT IRON DEFICIENCY IN MY AQUAPONIC SYSTEM?

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