I was introducing myself at a gardening forum site. I menetioned I use aquaponics. A few of the members there were asking some questions and one of them was 'do we need to add anything to the ap water ?'
I mentioned one of the common things was iron.

One of the members mentioned, that mag drive pumps removed iron from the water.
I asked where he had heard/read that..?
He gave me a link to a hydroponic site.

I copied and pasted this....... It was in part of a discription about a product.....


Basically, in a re-circulating hydroponic system, water passes by a magnetically driven pump multiple times throughout a day. The magnetic drive (or mag drive) can remove elements such as iron, magnesium, and different elements like that. So, House and Garden increased these levels.

So, what does everyone think of that...?
I just always thought that the plants used it up. We know magnets atract iron, so it kind of makes sense.
I had never heard this mentioned before, here at DIY, or any of the other AP forums....?