Pitching different yeast?

[silvervan83]

I've got 20 gallons going. One is a wheat the other is an amber lager (kolsch yeast). Its been 7 days and the wheat went from 1.061 to 1.021 The kolsch went from 1.064 to 1.022. How good/bad of an idea is it to pitch an ale yeast on the kolsch after bringing it up to 68?

 

[Parker36]

I wouldn't do that - especially with a wheat yeast.