Richard Sexton wrote:
It means you have a test kit and found your water was average.
180 ppm is "very hard". Wonder what they'd call my 1200ppm
water or LA's 800ppm water... "liquid rock" ? I'd call
180 ppm water just slightly ther other side of "soft".



1200??? Ack! My 240 ppm GH water leaves the worst scale on my drinking
glasses and shower I've ever seen. Are you sure LA is up at 800? San
Diego and LA both have Colorado river water and my 240 ppm number is

from the water plant rather than a test kit so I know it's accurate.

Yup, that's what the LA water district report said it was when
I lived there. It picks up a lot of hardness from the concrete
pipelines. And some radiation, but it's in "acceptible limits".

I got an RO filter after I read that...


Anyway, you should be able to keep most fish in that water. It's a
little high pH for REALLY sensitive fish like rams or discus.


Doesn't seem to bother anything.

I meant the original poster for rams or discus. When my ex-husband kept
discus here, they needed a minimum of 50% weekly water changes to handle
the higher pH and hardness, and twice weekly was better. Otherwise they
went dark and striped and hid in the corner. I think the high pH
stressed them so that DOC and nitrates had to be at an absolute minimum.
Since rams are similar, I'm adding enough RO water to my tank with the
ram to drop the pH to about 7.2 and that's working much better. (I'm
guessing 8 the correct measurement for OP's water since it's hard to
read above 7.4 with bromthymol blue.)

--
__ Elaine T __
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