High Carbonate Hardness (KH)

[zooty]

My carbonate hardness is about 170 mg/L.

Is this high KH something to be worried about?

Been adding Kent Marine Super Buffer and Kalkwasser.

Ph is 8.2 but Ca is also on the high side, about 500.

I have a water change coming up so that will bring it down but should I back off the supplements.

Oh, I useOceanic salt too and I heard that has high Ca.

TIA

[yraveh]

I believe the recommended level is 125-200 mg/l (ppm) = 2.5--4 meq/l

[WaterKeeper]

That's fine zooty. Nothing to worry about with those readings.

[Billybeau1]

<a href=showthread.php?s=&postid=9559569#post9559569 target=_blank>Originally posted</a> by zooty
Oh, I useOceanic salt too and I heard that has high Ca.

TIA

Yes, Oceanic has high levels of calcium. Last I tested (not too long ago) Oceanic at 1.0265 came in at about 580 calcium, 8.5 dkh alk and a whopping 1650 magnesium.

That said, some folks (who's tanks consume a lot of calcium) like this salt. Calcium of 500 is not earth shattering but unnecessary as around 420 would be the more preferred target.

170 mg/l ( or ppm) is about 9.5 dkh which is smack dab in the middle of the recommended range.

If your tank cannot consume all the calcium Oceanic gives, I would suggest maybe trying Reef Crystals. It slides in at about 420 ppm cal, 12 dkh and 1260 mag.

[zooty]

Thanks for the response.
My test kit said in case of high levels to contact an aqurium expert.

Anyway, the Ca should be good too with my corals

Thanks again

[Billybeau1]

:thumbsup: