I find it hard to believe you have 200 ppm by your description. In fact I've never heard of any well having that much. Are you sure it wasn't a typo and 2.0 ppm instead?

Regardless iron shouldn't be a problem in your pond especially a pond that size and the amount of water you are supplementing.

I deal with iron from a well at 2.5 ppm into a 100,000 gallon pond (1/10th acre) 45 gpm 24/7 and it's not a problem with my trout.

Also keep in mind for an accurate iron test it needs to be on site. If you send off a sample it won't be accurate.

Last edited by Cecil Baird1; 05/04/12 09:01 PM.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.