KH spike

[starfishguy869]

Hello, overnight, my KH spiked from 10.9 to 15+, (because I forgot to do a water change after using a little too much Aiptasia X. Is it problematic to my corals? I have a few pocillopora, a torch, a hammer, a anacro, a chalice, and a lepto. How do I fix this?

 

[herozero]

Do a water change. When making much bigger mistakes (parameter swing) I’ve gone as far as 50% to get things back to normal (90g with 60-80g water). Start with something smaller (10-20%) and see where your levels are at. Your corals certainly won’t like an overnight 50% dkh increase but it’s recoverable.

 

[crazyfishmom]

Hello, overnight, my KH spiked from 10.9 to 15+, (because I forgot to do a water change after using a little too much Aiptasia X. Is it problematic to my corals? I have a few pocillopora, a torch, a hammer, a anacro, a chalice, and a lepto. How do I fix this?

That’s really big. How big is your tank? How much aiptasia x did you use?

 

[starfishguy869]

A lot of aiptasia X, maybe 7 ml? My tank is 16 gallons. I think I will do a 25% water change tomorrow.

 

[ReefingDreams]

A lot of aiptasia X, maybe 7 ml? My tank is 16 gallons. I think I will do a 25% water change tomorrow.

Did you test your alk a second time to validate your number?

 

[starfishguy869]

No, I am almost out on all tests (I have two tests left).

 

[TehBrainz]

No, I am almost out on all tests (I have two tests left).

My recommendation based on above:

1. Order more tests now
2. Test new water with 1 of 2 units left to make sure it is at your target (lower than your tank target of 10.9)
3. Do large water change (I'd recommend 30-50%) to get alk back close to 10.9 (use a reef calculator like this one - https://reef.diesyst.com/chemcalc/chemcalc.html)
4. Test tank with last of tests left.
5. Repeat #3 and #4 (youll need to take water to your LFS or a tank buddy if the new tests havent come in)


edited: added reef calculator link