Activated Carbon

[dave840f1]

I know Carbon takes impurities out of the water but can it interfere with the PH?.

 

[fluttermoth]

No, it won't affect pH.
 
It doesn't help with most of the 'important' impurities in your tank either; it will not remove ammonia, nitrite or nitrate.
 
It's main use is for removing traces of medication after a treatment and it can help reduce tannin if you have a lot of bogwood and don't like the tea stained look.

 

[dave840f1]

Thanks fluttermoth its just I am using it to take out the Copper I was using to get rid of a snail explosion.

 

[fluttermoth]

Ah, it'll remove heavy metals like copper all right