I just got in a shipment of cpd's I bought from AB, and the seller threw in 3 clown killies for free! It was a great surprise, as the seller didn't mention he'd be adding any other fish for the winning bid. I really want to keep them but am unsure whether they'll like my hard water, as I've read they like soft to neutral pH levels. Does anyone have any experience with just keeping (not necessarily breeding) these guys? If they can live in more alkaline conditions, will that shorten their lifespans?