PH 7.2

[aerialdronemaster]

Hello
I need help
I have problem to keep PH in my nanocube
I just tested it, it is 7.2
how can I rise it? adding alkalinity ?

 

[namfuak]

What are the other parameters in your tank? Can you post some pictures? Where is it located?

 

[aerialdronemaster]

What are the other parameters in your tank? Can you post some pictures? Where is it located?

I am in the process doing rest tests, I will post soon

iits in my office, no opoen windows
heat from computer, , sun is partially hitting the tank

 

[aerialdronemaster]

What are the other parameters in your tank? Can you post some pictures? Where is it located?

what the heck, how did it happen !!

phospate 2.5 ( hanna checker )
Alkalinity 7.5

no need more testing, phosphate is so high
I need to do a water chagne

 

[vetteguy53081]

Bring alk up to 8-9 and Ph should creep up a little. You can add a little diluted sodium bicarbonate to the sump in small increments which will increase PH

 

[Randy Holmes-Farley Verified Community Expert]

IMO, it is very unlikely that the pH (7.2) is accurate.

How are you measuring it? When did you last calibrate the probe? how did you calibrate it?

 

[aerialdronemaster]

IMO, it is very unlikely that the pH (7.2) is accurate.

How are you measuring it? When did you last calibrate the probe? how did you calibrate it?

Hanna checker ,digital
Calibrated before the test
Tested few times in row

 

[Randy Holmes-Farley Verified Community Expert]

Hanna checker ,digital
Calibrated before the test
Tested few times in row

I think it is almost certainly not giving an accurate result. That value is far below values that folks accurately measure, which rarely, if ever, come out below about 7.5.

Try the aeration test in this article, and recalibrate again if you have both ph 7 and 10 fluids:

pH And The Reef Aquarium
http://www.reefedition.com/ph-and-the-reef-aquarium/

The Aeration Test

Some of the possible causes of low pH listed above require an effort to diagnose. Problems 3 and 4 are quite common, and here is a way to distinguish them. Remove a cup of tank water and measure its pH. Then aerate it for an hour with an airstone using outside air. Its pH should rise if it is unusually low for the measured alkalinity (Figure 2). Then repeat the same experiment on a new cup of water using inside air. If its pH also rises, then the aquarium’s pH will rise simply with more aeration because it is only the aquarium that contains excess carbon dioxide. If the pH does not rise in the cup (or rises very little) when aerating with indoor air, then that air likely contains excess CO2, and more aeration with that same air will not solve the low pH problem (although aeration with fresher air should). Be careful implementing this test if the outside aeration test results in a large temperature change (more than 5°C or 10°F), because such changes alone impact pH measurements.

 

[aerialdronemaster]

hello guys
following up
the PH is still dropping

I added 3 live rocks last week, and it put my ammonia and phosphate super high, like phosphate 2.6 , I battled it to 1.6 and still trying to bring it down.
I added turbo start and something to absorb phosphate
using apex to do water change,
it is 24G tank, and I am doing 0.5g a day right now

is there anything else I can do, or let it run?

thank you

 

[Randy Holmes-Farley Verified Community Expert]

What is the time from of that pH graph?

 

[aerialdronemaster]

What is the time from of that pH graph?

the spike is ( I removed the probe from the tank)

I am also adding small amount of air to remove co2 if any

 

[Randy Holmes-Farley Verified Community Expert]

This is a lit reef aquarium? It correctly reads pH 7 and 10 standards?

It just looks like noise to me. I think there may be a fundamental problem. pH in any reef tank cycles day to night, rather than skipping randomly up and down. Photosynthesis during the day raises pH, and it falls at night due to respiration but yours was at one point rising all night.

 

[aerialdronemaster]

This is a lit reef aquarium? It correctly reads pH 7 and 10 standards?

It just looks like noise to me. I think there may be a fundamental problem. pH in any reef tank cycles day to night, rather than skipping randomly up and down. Photosynthesis during the day raises pH, and it falls at night due to respiration but yours was at one point rising all night.

7 is correct, I am testing readings with hanna checker
the 10 spike was an error, I removed the probe from the tank.
yes it is a small tank

 

[Randy Holmes-Farley Verified Community Expert]

7 is correct, I am testing readings with hanna checker
the 10 spike was an error, I removed the probe from the tank.
yes it is a small tank

You have calibrated it at pH 7 AND 10?

 

[aerialdronemaster]

You have calibrated it at pH 7 AND 10?

yes, I did.

 

[Randy Holmes-Farley Verified Community Expert]

The pH vs time graph just doesn't have the look of a reef aquarium, whether the pH is low or not.

 

[aerialdronemaster]

The pH vs time graph just doesn't have the look of a reef aquarium, whether the pH is low or not.

What do you mean ?

 

[Randy Holmes-Farley Verified Community Expert]

pH vs time graphs look like this graph (yellow line). Up/down/up/down, every day up/down. The size of the swing may change and the absolute values change, but the shape is always similar. Yours does not seem to be having this normal trend.

Ph swing question

Recently my ph has begun swinging a lot more than usual. It seems to swing with temperature and at night but the temp swing is small. Something that may play a part is my tank is in my garage at the moment. There’s a small room at the back of the garage which holds everything so it’s...

www.reef2reef.com

 

[Rick Mathew]

I would look for any potential Electrical problem (EMI) or Stray voltage in the tank...As Randy said...what this chart looks like is not a normal pH cycle in a reef tank...looks like something else...do you have access to another probe...Could be a bad probe...been there done that!