My tapwater here's like this:
pH 8 (and it doesn't drop!)
Gh 11
KH 6-7
and with a little bad luck it sometimes contains nitrates and phosphates too; because there's about 130 million chickens and 80 million pigs sh****ng in our provice and -in a dry period with little rain- it seeps through, to the deep water in the ground.....
Wash your clothes with it, drink your coffee, do the dishes,take a shower....oink oink!
For that last matter, I've got whopping good biological filtration rigged up. And I use iron to take out the phosphates (in case of the big Rifttank, a handfull of nails in the filter)
As for the other:
Choose your fish wisely! And use tons of peat if you're attempting to breed riverine rainforest species.
So far bred in the last year only:
Ancistrus

(yeah, I know, anyone breeds 'em)
Lophiobagrus brevispinis, twice (second nest was eaten by cichlids; they're working on the third now, first nest: root around forum for pics)
Synodontis polli (eggs fungused, but working on a solution for that)
Synodontis petricola dwarf, repeatedly
dozens of Riftlake cichlids
Well, I'm off to wash my hair with Pork&Fowl-anti dandruff
