Well, I do take most of my fish into Spencer's place but the chocolates move rather slowly, I think they are a highly underrated SA cichlid since most aquarists haven't seen adults, and many might not have the patience to get them to that point. I do my water changes (30-40% per week) straight from the tap. Here in Manitoba, our tap water is derived from a granite bottomed lake in Ontario. Normally the pH and hardness are well within the tolerances of all the cichlids I keep, and the chlorine content is never an issue. Having said that , there is a tendency for the city to over-chlorinate the water supply in late fall/early winter. Got to be a bit more careful then. Thank goodness we don't have chloramine in our water supply (YET!!)