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Update Report For My 10 Gal.

This is a discussion on Update Report For My 10 Gal. within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Originally Posted by jennesque Is the pH change occurring when you do your water changer? What is your tap water's pH? Posted via Mobile ...

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Update Report For My 10 Gal.
Old 06-20-2012, 05:58 PM   #11
 
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Originally Posted by jennesque View Post
Is the pH change occurring when you do your water changer? What is your tap water's pH?
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Jenesque,

The pH changed once from 6.8 to about 7.6 when I put in Seachem Equilibrium, but that wasn't the problem I think. I suspect something knocked out the pH Down buffer that kept the pH down. Can't even find the bottle, I think I threw it out. For tap pH see above.

Steve
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Old 06-20-2012, 08:37 PM   #12
 
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Originally Posted by Nemo the Clownfish View Post
Byron -

The pH's from degassed tap water came out:
pH 7.6 (test maximum)
phHigh 7.4 (test minimum)

pH before Eq application: pH 6.6 to 6.8 (in tank) on a range of different times and dates - mostly 10:30 am.

The tank pH was 7.6 after adding Eq.
Please let me know how to proceed (water change?).

Steve
You're getting a lot of variation in pH here...earlier the tap was said to be 8.9, now it is 7.4...outgassing CO2 would result in the same or higher pH, not lower, so this is puzzling. Unless the source water is varying due to something we are not aware of.

I would use the regular pH test kit, not the high, with numbers in the 6's and 7's.

KH was previously said to be 2 dKH, so the pH in the aquarium should tend to lower a bit. A partial water change using "pure" water might work as it will dilute the buffering capacity. The GH can be left alone until this is settled.

Byron.
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Old 06-20-2012, 09:02 PM   #13
 
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You're getting a lot of variation in pH here...earlier the tap was said to be 8.9, now it is 7.4...outgassing CO2 would result in the same or higher pH, not lower, so this is puzzling. Unless the source water is varying due to something we are not aware of.

I would use the regular pH test kit, not the high, with numbers in the 6's and 7's.

KH was previously said to be 2 dKH, so the pH in the aquarium should tend to lower a bit. A partial water change using "pure" water might work as it will dilute the buffering capacity. The GH can be left alone until this is settled.

Byron.
Ok, for starters I would just throw out the 8.9 pH - I think it was from the MWRA report. Unnerving, but the 7.4 ought to be accurate. I was under the impression that the KH of 2 was not very high. However, I can pick up 2 gallons of distilled water easily enough (20%). Math is fairly easy with a 10. I'm assuming that I will add 1/5 of the 10 gallon dose of Eq to the distilled water. Hope it gets the pH down a little. The trend ought to be towards the acid side over time anyways, right? BTW, Eq does not effect KH, right?

Thank you very much. I'll give you the new pH.

Steve

Last edited by equatics; 06-20-2012 at 09:09 PM..
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Old 06-21-2012, 10:12 AM   #14
 
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Originally Posted by Nemo the Clownfish View Post
Ok, for starters I would just throw out the 8.9 pH - I think it was from the MWRA report. Unnerving, but the 7.4 ought to be accurate. I was under the impression that the KH of 2 was not very high. However, I can pick up 2 gallons of distilled water easily enough (20%). Math is fairly easy with a 10. I'm assuming that I will add 1/5 of the 10 gallon dose of Eq to the distilled water. Hope it gets the pH down a little. The trend ought to be towards the acid side over time anyways, right? BTW, Eq does not effect KH, right?

Thank you very much. I'll give you the new pH.

Steve
This seems best. When the ph is stable in the 6's for a week, add the Equilibrium and see if it changes.
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Old 06-23-2012, 01:44 PM   #15
 
Byron,

I'm having another problem, with KH. I'm reading it as 1 - the first drop turns the water yellow, so KH could even be less than one. I'll have to test again. I wonder what would cause the KH drop?
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Old 06-23-2012, 02:46 PM   #16
 
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Byron,

I'm having another problem, with KH. I'm reading it as 1 - the first drop turns the water yellow, so KH could even be less than one. I'll have to test again. I wonder what would cause the KH drop?
Is this tap water or tank water?

KH was said to be <2 previously, it may still be close.
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Old 06-23-2012, 03:52 PM   #17
 
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Is this tap water or tank water?

KH was said to be <2 previously, it may still be close.
This is tank water. I was all set to go with the water change. pH is 7.6+. Am I having trouble with the tests or what? It says in the directions for KH test that the water turns from blue to yellow, but it turned to yellow on the first drop (API). I guess I'll have to look for some spaghnum moss...
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Old 06-23-2012, 04:04 PM   #18
 
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This is tank water. I was all set to go with the water change. pH is 7.6+. Am I having trouble with the tests or what? It says in the directions for KH test that the water turns from blue to yellow, but it turned to yellow on the first drop (API). I guess I'll have to look for some spaghnum moss...
I wouldn't worry about the KH, the difference between 1 and 2 may only be something with the test.

To get the pH lower, with the numbers you have for the KG and GH, this is where I would use a reliable pH lowering product. I know i never recommend these, but that is because they won't work long-term if the KH is higher. In my tanks when i set up a new one, or reset one with all tap water having a pH of 7.2, I use API pH Down once. It gets the pH lower, and it stays there.
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Old 06-24-2012, 01:46 PM   #19
 
Byron,

I did the partial water change with 2 gallons of distilled water. Here are the test results:
pH - 7.6
Nitrate - 0
KH - 2
GH - 6
-- Water Change --
pH - 7.6
KH - 1
GH - 5 (didn't put in any Eq)

I got you on your latest recommendation. My water started out around 7.6. I guess I'll do it - will have to pick up the pH Down.
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Old 06-24-2012, 06:49 PM   #20
 
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Originally Posted by Nemo the Clownfish View Post
Byron,

I did the partial water change with 2 gallons of distilled water. Here are the test results:
pH - 7.6
Nitrate - 0
KH - 2
GH - 6
-- Water Change --
pH - 7.6
KH - 1
GH - 5 (didn't put in any Eq)

I got you on your latest recommendation. My water started out around 7.6. I guess I'll do it - will have to pick up the pH Down.
The pH should lower. Go easy on the pH down, I never do more than one drop per gallon.
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