I am weary of using warmed water (warm from the tap) when doing water changes.
Somehow, I feel that water that has been through a water heater is somehow less pure, picks up more crud, etc. I have absolutely no basis for this, just my assumption. If I'm putting in the right additive to take out crud, calcium deposits etc and clean the water, and I've let the tap run for a while before using it is there any need to worry?
That is, is the pre-heated water going to be really any more/less worse than what I'm putting in there already? (cold tap water).
I'd just like to get him back in the tank sooner because he doesn't seem too fond of the temporary accommodations.