I have a 120 reef tank my pH bounces between 7.92 and 8.08 my ALK is 5.33 and KH dKH is 14.8 I want to raise my pH and lower the ALK. I am doing 10% weekly water changes using RO/DI water and IO Reef Crystals. Can some one please tell me what to do next.
How do I fix Low pH high ALK
- Thread starter Brian65901
- Start date
- Location
- Staten Island
Where is your calcium at??
- Location
- poughquag, ny
Ph
Check Other Levels, But From A Post I Had Here And From Reading Soda Water Or Vinergar Will Lower It Also
Check Other Levels, But From A Post I Had Here And From Reading Soda Water Or Vinergar Will Lower It Also
- Location
- Staten Island
You could probably add a little more calcium part of the dose..
Are you running a Ca reactor? It is very common to end up with this situation when running a Ca reactor due to the introduction of CO2 to the system. The more you can off-gas the CO2 the higher your PH will go. One of the easiest ways I've found to increase my PH is to turn down my Ca reactor and dose Kalk to make up the difference. Kalk by itself would have high PH & Alk, CA ractor would have low PH & Alk and together they have a balanced PH & Alk which should be able to run in the 8.2 and 11 ranges. IME, anyway.
Fans over the sump will also help to blow off some of the trapped CO2 from your system, best paired with injecting outside air into your system (because the CO2 in the house is typically high to begin with so the tank has a hard time releasing CO2 into the air that is already high in CO2).
Fans over the sump will also help to blow off some of the trapped CO2 from your system, best paired with injecting outside air into your system (because the CO2 in the house is typically high to begin with so the tank has a hard time releasing CO2 into the air that is already high in CO2).
- Location
- Staten Island
Good piece of info..... yeah nice to know this....I have been doing this for some time now...Always good to have someone confirm my sometimes weird ways with more info for me thanks...
Nothing added
I don't have a ca reactor I do have borderline low pH and very high ALK %.33 which I want to get below 4. Other tahan waiting for it to happen naturally I so far have not found a foolproof way of speeding up the process. I have too many corals I dont want to upset with large volume water changes. i may increse my 10% weekly changes to bi-weekly.
I don't have a ca reactor I do have borderline low pH and very high ALK %.33 which I want to get below 4. Other tahan waiting for it to happen naturally I so far have not found a foolproof way of speeding up the process. I have too many corals I dont want to upset with large volume water changes. i may increse my 10% weekly changes to bi-weekly.
Brian,
It sounds like you may have a co2 buildup. Water movement, Room conditions (closed windows) may contribute to an excessive amount of co2 that could lower your pH. Take some water and put it in a jar and shake it. Then open the cap and do it again. Then test the water. If your pH rose it means you have a build up of co2.
Then go from there ruling out how to get your pH up.
Kasei
It sounds like you may have a co2 buildup. Water movement, Room conditions (closed windows) may contribute to an excessive amount of co2 that could lower your pH. Take some water and put it in a jar and shake it. Then open the cap and do it again. Then test the water. If your pH rose it means you have a build up of co2.
Then go from there ruling out how to get your pH up.
Kasei
- Location
- Westbury L.i
check your salt....it may be the contributor...
what level is your magnesium and raise that calcium..
from reading those article deanoos linked......your alk/ca/mag are possibly not at thier balanced levels so they are fighting each other....
what level is your magnesium and raise that calcium..
from reading those article deanoos linked......your alk/ca/mag are possibly not at thier balanced levels so they are fighting each other....
Sponsor Reefs
We're a FREE website, and we exist because of hobbyists like YOU who help us run this community.
Click here to sponsor $10:
