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Huh, I've never had to deal with hard water in my fishtank(s). Usually I'm adding hardness, not removing it. What sort of fish do you keep? I imagine tetras wo
by Filligree 7y ago
Huh, I've never had to deal with hard water in my fishtank(s). Usually I'm adding hardness, not removing it.
What sort of fish do you keep? I imagine tetras wouldn't do too well in that, so that's my favorite setup out the door.
- _Microft 7y agoI can't say for sure, they are not mine personally. A few are a kind of catfish (small, no longer than 10-12cm). Having such hard water is not great but it would be difficult to do otherwise. They are thriving, in case you were concerned.
- Filligree 7y agoI'm not doubting that, mostly just curious. There are entire groups of fish which I cannot keep because I'd need continuous hardness monitoring(, and water replacements would get expensive).