[quote=”bartian” post=1233]That’s as easy as starting a new tank. Just start changing water with rainwater(I use RO) and after a while the water will be very soft. Then start filtering over peat.
I did it in several tanks.[/quote]
Thank you – and you succeeded in bringing down the conductivity this way, too? I think the conductivity depends on the complete setup – not only on the water, doesn’t it?