Need help & advise.. Extremely low PH!

[keanetom]

Hi all, i just rescape my tank and only have some corals in my tank (no fish yet).. I used sea water for my set up and initially the PH was alright.. But recently when i added a FR (with Rowa Phos) due to brown aglae which was common during the setup phase, my PH drop to less than 3!! I thought its my PH monitor or probe giving me problem.. But after testing it in Iwarna and re-calibration, the PH monitor and probe is working normally.. But when I brought it back and put into my tank, the water read a PH of less than 1 (ard 0.66)!!The value went up when i shake the probe in the tank but went down again after i stop...

I do not have such problem previously... Anyone can advise??

Thanks in advance..

[qwertman321]

maybe it might be chemical reaction with the sand? what sand u using?

[FuEl]

pH not possible to be below 3. If so your hands should be suffering from acid burn already..

[jackywongto]

I am reading with disbelief.....

[keanetom]

91Litres - Me using grade 2 sand from Iwarna.. Shld be ok cos its fine during the setup...

FuEl - I thot so too... but my PH monitor show otherwise... The best thing is, my coral are fine...

jackywongto - I oso disbelief.. Now its reading 0.31!!!! I wana cry liao..

[LaW]

91Litres - Me using grade 2 sand from Iwarna.. Shld be ok cos its fine during the setup...

FuEl - I thot so too... but my PH monitor show otherwise... The best thing is, my coral are fine...

jackywongto - I oso disbelief.. Now its reading 0.31!!!! I wana cry liao..

dip it in tap water. let us know the result.

[jackywongto]

Prob the PH meter spoilt already.

Cannot hold the calibration.

yeah test with tap water.

Our tap water has PH of about 9.0

[teebs]

91Litres - Me using grade 2 sand from Iwarna.. Shld be ok cos its fine during the setup...

FuEl - I thot so too... but my PH monitor show otherwise... The best thing is, my coral are fine...

jackywongto - I oso disbelief.. Now its reading 0.31!!!! I wana cry liao..

It's impossible to have PH of 0.31. All your corals would have died already and when u put your hand into the tank, your hand would have disintegrated too and you will end up in hospital in the emergency unit. The most probable thing is that your probe could be spoilt.

The next thing you can do is to get the PH test kits from any LFS and test your water.

[LaW]

yes, tap water should give 7+~9 normally.

so counter check that.

if you have coke or other soft drinks, dip it in. it should be about 3.5+/-

btw, how old is ur probe. if the liquid inside the probe can be seen, is there still any?

and perhaps u want to announce the brand of ph meter you used as well for reference.

[dnsfpl]

pH not possible to be below 3. If so your hands should be suffering from acid burn already..

my friend's FW tank pH 4, but her FW fish are surviving well, for years

if you mix 1 part ph down solution to 10 part tap water, the reading will be around 3 but no ill effects to your hand

furthermore those carbonic drinks we consume pH around 3 too

cheers

[keanetom]

My reading as follows:

1) In my sump - 0.61

2) In my main tank - 4

3) Tap water - 6.17

How can my sump & main tank giving me 2 different values?! I'm confuse ..... Btw, i'm using pinpoint PH monitor..

[dnsfpl]

My reading as follows:

1) In my sump - 0.61

2) In my main tank - 4

3) Tap water - 6.17

How can my sump & main tank giving me 2 different values?! I'm confuse ..... Btw, i'm using pinpoint PH monitor..

where do you stay

tap water pH at bukit panjang - 8.5, central 7.9

cheers

[keanetom]

I have done the testing in the SPS tank of Iwarna after recalibration and the reading is normal (8.16).. But hay wire when i dip in my tank.. Duno y leh..

[teebs]

My reading as follows:

1) In my sump - 0.61

2) In my main tank - 4

3) Tap water - 6.17

How can my sump & main tank giving me 2 different values?! I'm confuse ..... Btw, i'm using pinpoint PH monitor..

Bro, I suggest you go down to the LFS and buy the PH test kits. These will be able to test your PH of your water and you will be able to get a rough idea of how much your PH is. Otherwise you can borrow Jacky's PH monitor and test the water in your tank.

Another thing is do you have the calibration liquid for the Pinpoint monitor? If you have use that to test your PH probe and monitor.

[keanetom]

I'm at Simei... Might not be accuate due to my 'problem' PH meter..

[teebs]

I have done the testing in the SPS tank of Iwarna after recalibration and the reading is normal (8.16).. But hay wire when i dip in my tank.. Duno y leh..

Did you bring your monitor and probe down and test at Iwarna?

[jackywongto]

Bro, I suggest you go down to the LFS and buy the PH test kits. These will be able to test your PH of your water and you will be able to get a rough idea of how much your PH is. Otherwise you can borrow Jacky's PH monitor and test the water in your tank.

Another thing is do you have the calibration liquid for the Pinpoint monitor? If you have use that to test your PH probe and monitor.

!@##%T@$%^#! arrow me againzz......

but yeah... Tom, you can borrow from me if needed.

[raydiative]

I'm at Simei... Might not be accuate due to my 'problem' PH meter..

Bro.. if you want you can test at my place.. i'm at simei too..

[keanetom]

Bro, I suggest you go down to the LFS and buy the PH test kits. These will be able to test your PH of your water and you will be able to get a rough idea of how much your PH is. Otherwise you can borrow Jacky's PH monitor and test the water in your tank.

Another thing is do you have the calibration liquid for the Pinpoint monitor? If you have use that to test your PH probe and monitor.

Hi bro, I calibrate my meter and probe using the calibration liquid from Iwarna.. Maybe need to borrow a PH monitor to test my water as what u say...

[keanetom]

Did you bring your monitor and probe down and test at Iwarna?

Haha.. bro, thanks in advance! Btw, where u stay?

[teebs]

Hi bro, I calibrate my meter and probe using the calibration liquid from Iwarna.. Maybe need to borrow a PH monitor to test my water as what u say...

What you can do is bring a sample of your sump and main tank water to Ray's house and test with his PH monitor. If his PH monitor indicates readings of 8 then something wrong with either your monitor or probe already.

[teebs]

Haha.. bro, thanks in advance! Btw, where u stay?

I'm staying at the opposite of the island. Maybe you can PM ray and see when u can drop by his house to test your tank and sump water samples.

[jackywongto]

My reading as follows:

1) In my sump - 0.61

2) In my main tank - 4

3) Tap water - 6.17

How can my sump & main tank giving me 2 different values?! I'm confuse ..... Btw, i'm using pinpoint PH monitor..

is it consistently low 0.6 always when u measure?

twist the wire at the connector end, probe end and see if the reading changes.

if yes, then prob cabling has gone bad.

scoop the sump water in a cup and measure outside the sump.

Is it still 0.6?

[keanetom]

Bro.. if you want you can test at my place.. i'm at simei too..

Hi bro, me at blk 148.. Where is yr location? Will it be better to borrow your PH monitor to test in my tank or i bring the water to your hse for test?

[keanetom]

is it consistently low 0.6 always when u measure?

twist the wire at the connector end, probe end and see if the reading changes.

if yes, then prob cabling has gone bad.

scoop the sump water in a cup and measure outside the sump.

Is it still 0.6?

Ok.. will try that later... But i notice the reading fluctuate when i move it to different position / location.. Or when i shake it..