Our tap water is off-the-test-chart hard. Literally. GH>180 and KH >240 with a pH around 7.2
Our rain water is GH<40 and KH<30 with a pH of 6.3
I've never bothered with rainwater before and have no species related preference (fauna or flora), but was wondering about using rainwater in my low tech tank.
I know some very knowledgable people use 100% rainwater, and some us 50/50, but after reading quite a few threads, I'm entirely unconvineced what difference it would make, positive or negative, if I did.
Any thoughts would be welcome.
Our rain water is GH<40 and KH<30 with a pH of 6.3
I've never bothered with rainwater before and have no species related preference (fauna or flora), but was wondering about using rainwater in my low tech tank.
I know some very knowledgable people use 100% rainwater, and some us 50/50, but after reading quite a few threads, I'm entirely unconvineced what difference it would make, positive or negative, if I did.
Any thoughts would be welcome.