Plants that handle iron rich pond water

Geographical context: I live in Scandinavia.

I have this ground water pond, where iron rich ground water surfaces and turns into an orange mess. I have managed to add trickle of fresh water from a an old natural well, that does not have the iron issue, and I let this run into the pond from a pipe I hung in a three to get it more aerated. This stops the bacteria from taking over the pond completely, but there is still nothing that seems to want to grow in the pond, even if the oxygen level now should be ok. So I need tips on what to add that may handle an iron rich bottom and not be invasive. Anyone dealt with this and got any suggestions?