Is hard water a concern?

[floriks]

Water's too hard when you're struggling to get to your fish, it's like trying to cut through a brick wall, not exactly ideal for your aquatic friends.

[floriana]

can water be too hard for Mbuna? i'm in a hard water area and my kettle's got a serious chalk build-up - is this water too harsh for them? i've got the salts to simulate their natural water composition but using tap water seems like a gamble, or should i just add a hint of trace elements to it?

I gave mine a whack and it shattered. Guess that means it's hard enough for the Mbuna, they seem pretty happy with it.

[fluxeon8]

what's the glass or the water, right? sometimes it's so clear i'm not even sure what i'm looking at lol... floriks said cutting through with a saw, but i'd say if you need chuck norris to break through, that's when you know your water's hard