Help ph too high

[DEWreefing]

Okay so I just added 3 new hydra 64HD to my tank and lately the ph has been getting as high as 8.65 I'm worried it is too high for my sps and at night my ph drops to about 8.3 8.4. Is this a dangerous level. Checked with 2 apex probes and a ph meter pin.
Corals are also consuming around 1 DKH per day even with the calcium reactor. I had to basically open effluent line valve to full open.

 

[AllSignsPointToFish]

That doesn't sound right. Usually, the issue is that pH is too low. What is your dKH running right now?

 

[homer1475]

Definitely a little high and very uncommon. CO2 scrubber? kalwasser drip or in the ATO? Or anything to boost PH? Alkalinity numbers would help too.

 

[m0jjen]

If you dont use anything of the above mentioned, kalk, scrubber and so on its probably just a faulty calibration of the PH probe.

 

[lapin]

Okay so I just added 3 new hydra 64HD to my tank and lately the ph has been getting as high as 8.65 I'm worried it is too high for my sps and at night my ph drops to about 8.3 8.4. Is this a dangerous level. Checked with 2 apex probes and a ph meter pin.
Corals are also consuming around 1 DKH per day even with the calcium reactor. I had to basically open effluent line valve to full open.

Can you give us your other testing numbers?
Are you dosing anything?
Have you calibrated your probe recently?
I dont think the new lights did anything to effect Ph.
What you might do is increase the bubble rate in your reactor. This should help increase the calcium output and add a bit of Co2 to the tank and maybe lower your Ph a bit.

 

[DEWreefing]

No kalk, no dosing, dkh 8 to 8.5 cal 440, mag 1350, nitrates 5, phosphates .12

 

[DEWreefing]

My skimmer line does run outside.

 

[DEWreefing]

That doesn't sound right. Usually, the issue is that pH is too low. What is your dKH running right now?

8.4

 

[DEWreefing]

Can you give us your other testing numbers?
Are you dosing anything?
Have you calibrated your probe recently?
I dont think the new lights did anything to effect Ph.
What you might do is increase the bubble rate in your reactor. This should help increase the calcium output and add a bit of Co2 to the tank and maybe lower your Ph a bit.

All the probes and the meter get the same ph meter is only off by .1 deffinatly have a lot more growth going on could the coral be sucking the cow out of the water colum?

 

[DEWreefing]

If you dont use anything of the above mentioned, kalk, scrubber and so on its probably just a faulty calibration of the PH probe.

I tested with 2 double junction probes and a meter all 3 can not be bad.

 

[lapin]

I would first try increasing the bubble rate as I said above.
Last resort if you want to chase Ph, is to lower your water change waters Ph before a water change.

 

[DEWreefing]

I would first try increasing the bubble rate as I said above.
Last resort if you want to chase Ph, is to lower your water change waters Ph before a water change.

Bubble rate on the cal RX? Also I have not done a water change in 2 years.

 

[m0jjen]

I tested with 2 double junction probes and a meter all 3 can not be bad.

Missed that part, but still wouldnt rule it out depending on age and how the probes were stored, probes tend to deviate alot over time, i thought my PH was 8.4-8.5 until i did my 6 month calibration and found out it actually was 8.0 - 8.2 and the probe started to deviate a long time ago.

That aswell as age on the probe. Mine is 2 years and is pretty much finished. Then again, you know better than me what condition your probes are in

 

[BeejReef]

obv u know you could pull your skimmer line back inside

do you run a refugium? could dial that back a bit

 

[DEWreefing]

No refugium

 

[LC8Sumi]

I think maybe your calib solution is off. Because you’re melting 1dKh in the Carx at pH 6.84 - that seems a bit high as well. Maybe the real pH in the reactor is also lower -> this steers me in the direction of thinking about a calibration process issue

 

[DEWreefing]

I think maybe your calib solution is off. Because you’re melting 1dKh in the Carx at pH 6.84 - that seems a bit high as well. Maybe the real pH in the reactor is also lower -> this steers me in the direction of thinking about a calibration process issue

Reborn reator media starts to melt at 7.6 it will turn to mush at 6.4 to 6.2 by lowest melting point is 6.6