Urgent Ph 8.9!!!

so i just dosed alk and my ph shot from 8.3-8.9. im using BRS alk type 1 and added 97(100ml actually) to go from 7-9dkh and as soon as it hit the water it turned milky and then i looked at my controllers' ph reading and BOOM 8.9!!! first time dosing alk with the brs and im scarred! help!!

 

I would just wait and watch at this point if you see no stressed corals or inverts. Do the corals look stressed?

If they do than you should consider looking at this link.

High pH: Causes and Cures by Randy Holmes-Farley - Reefkeeping.com

 

oh..its normal...so it seems

 

No it's on the high end, the issue is the swing, snails and inverts do really poorly with pH swings.

Also dose buffer in the am at the beginning of the photoperiod when the pH is the lowest, but I would not buffer for a pH of 8.3. What was the alk?

 

alk was kinda low, 7.ya, i knew i was suppose to dose alk in the am due to the ph drop after lights out, just kinda slipped my mind. its dropped to 8.7 so it should get down to safe levels within a day. hope its not too much stress....

 

Was your pH probe in the same chamber you dosed into? Assuming that you dosed into a sump of course.

If so I wouldn't worry to much. The pH will be a lot higher in the immediate area that the alk mix is dosed.

I dose into the return chamber of the sump and my probe is in the over flow on the tank. It takes a good five minutes for my pH to rise even a couple tenths. That's why I'm wondering if you dosed real close to your probe.

 

that cant be, re-check your results- 8.9?

 

Is it not recommended that you only increase your dkh by a maximum of 1dkh per day?

Maybe that would prevent such a large increase in pH

 

ive shot mine up over a short period of time raising the alk. it came down within a few hours.

 

The recommendation is no more than 1meq/l or 2.8 dKH per day.

Ph jump is normal ben.