water changes

[mralgae]

Water changes:
I have been reading on another forum that some members use water from the HOT WATER TAP to bring up the temp before putting into the tank.
As I am aware and mentioned by them, water from the hot tank contains copper and years ago it was not the done thing to use hot water in an aquarium. Have things changed so much over the years that this can be done with no effect on plants or fish now days or is it still not advisable to use hot water.
When I do water changes I always use boiled water from the kettle to raise the temp but this is a pain when doing large changes. I normally add 1.7L boiled to 9L cold which gives me a near 23/24deg temp.
Any comment would be grateful

[kotr]

wow, I use hot water straight from the tap. then again I only changed about 10 to 20% at a time, and infrequently at that. Mind you I only really have an amazon sword plant at the moment, so you'll have to weigh my response with that. Still, I've never noticed any decline in fish or plant health after a water change, even when I do a 50% one.

[jackpike]

I would think it would all depend on the system you use to heat your water, 20years ago most people would have had old fashioned water storage tanks to heat their water. And god only knows what kinda crap it would collect in it over the years. But now most people have combi boilers where the water is heated on demand, I can't see the heated water from that being any different from cold tap water. Its something i have only ever done when i needed water in a rush during cold winter months. I just store the water and let it come to room temperature on its own. Which saves on energy and the big energy bills. Doing my bit to save the planet.