Calcium

[fishmaster818]

What can high calcium levels do to a reef tank

 

[nicodim55]

What can high calcium levels do to a reef tank

Apparently, nothing in my tank at least my Cal level have never been below 500. Mine is at 780 since Saturday how high is yours?

 

[Randy Holmes-Farley Verified Community Expert]

It is not usually a problem unless it is a massive overdose. It can increase abiotic precipitation of calcium carbonate, but so does elevated pH and alkalinity.

 

[fishmaster818]

Apparently, nothing in my tank at least my Cal level have never been below 500. Mine is at 780 since Saturday how high is yours?

Mine is 520

 

[nicodim55]

Mine is 520

You're ok bud, I wish I can bring mine that low lol. How's your Alk though? You wanna make sure that's in check 8-12 dkh. IME having low Alk level poses more problem than having high Cal. Again, we all have different tank set up so results may vary.

 

[fishmaster818]

You're ok bud, I wish I can bring mine that low lol. How's your Alk though? You wanna make sure that's in check 8-12 dkh. IME having low Alk level poses more problem than having high Cal. Again, we all have different tank set up so results may vary.

Alks 12.9

 

[Randy Holmes-Farley Verified Community Expert]

Mine is 520

That is no concern. I'd just not intentionally add any.

Same for alkalinity: just let it decline.