Continued from your other thread with this info
Your hardness at 16 german deg is 112mg/l Ca and 280mg/l CaCO3 - just different units for the same hardness. My water company's website has a pretty coloured chart labelled in mg/l Ca which is why I needed to convert it. Hard goes from 80 to 120, so 112 (yours) is near the very hard end of hard.
Looking at the fish we've talked about so far:
Platies - 14 to 30 dH = fine in your water (16dH)
Panda cories - 1 to 12 dH = your water is too hard
Harlequins - 18 to 125 mg/l CaCO
3, or ppm = your water is too hard (280ppm)
Pengiun tetra - up to 15 dH = you could get away with these
False rummy noses - 1 to 12 dH = too hard
True rummies - 2 to 15 dH = these would be OK, though you'd need to make sure which ones the shop was selling
Zebra danios (if you tank was longer!) - 90 to 357 ppm (yours is 280) so they'd be fine if you had a longer tank
Tinwini danios - 18 to 90 ppm (mg/l caCO
3) = your water is way too hard
All figures taken from Seriously Fish. And sorry about the mixed units, that site does use different ones.
So I'm afraid you do need a rethink.
Of the top of my head, fish that would be OK in your water are
Platies guppies and endlers. Not swordtails or mollies because of the tank length.
Forktail blue eyesX-ray tetrasLemon tetrasFalse penguin tetras and perhaps
penguin tetras. The profiles on here have penguin tetras, but those are the fish that SF calls false penguins. The ones with the stripe down the body as well as the tail are OK, the ones with the stripe in just the tail might be OK.
Emerald green rasboras These were called Danio erythromicron last time I looked, they've changed the latin name again.
Of course there are a lot more fish that suit hard water. The problem is that a lot of them need big tanks eg central American cichlids. Even small rainbowfish need longer than 62cm.
Anyone else think of more smallish hard water fish?