Try this on your carbon
 

Well did a major filter clean out of my Koi filter which of coarse includes changing out the carbon. Did the hot water soak and decided to I didn't need as much as I soaked. So I drained the extra carbon and put it in the lid of the carbon container. Went back later to clean up my mess and noticed this in the carbon (undisturbed) Not just a little rust but lots, even stirred it up to check. And this is just barely a handful. Shows some of the crap that's on the market. Try this on your carbon, I'm curious to see if others find this.

http://i486.photobucket.com/albums/r...g/IMG_1907.jpg

ROX all the way =)

Yup, just bought some for the first time.

Here is an excellent article that explains the different kinds of carbon.
http://joejaworski.wordpress.com/200...k-need-carbon/

There was a 400 gallon tank about a year ago where rust was found in the carbon. Something about a group buy. The tank was adversely affected by the rust, so perhaps you are lucky.

- Brad

Pull it out with a magnet Mike!

Chemi-Pure Elite Wooooooot!

That was Greg (Snappy, Coralmaster) right here =)

Just curious... why would you hot water soak your carbon?

I thought you were only supposed to use cold while rinsing or cleaning?

Would you have the same effect if you soaked in cold water?


Strange none the less. Not sure if I missed it... but what brand of carbon is that?

Ahh sorry to hear you encountered this issue!


Thanks for linking that, good read!