Aquarium Water

[panfield]

I breed tropical fish and I want to install a combi boiler to supply the hot water during mainetance, would it be safe to do this? I have read that it is not safe to drink from the combi, if this is true then it wouldn't be any good for the fish either.

 

[REDSAW]

neither will be the copper from the system,
a sure killer for tropical fish!!!!!

 

[panfield]

neither will be the copper from the system,
a sure killer for tropical fish!!!!!

But all our systems are copper piped, hot and cold. Is it the fact that it is heated inside the boiler that transfers something to the water?
All water is treated with conditioner before going in the tanks removing chlorine and detoxifying heavy metals.