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post #1 of 10 (permalink) Old 06-12-2008, 01:27 AM Thread Starter
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Ph emergency

Hi there,

I just tested my ph, something i do not do as reguarly and something I have not done since adding co2 last week and upon testing just now I discovered it was very very alkaline at least 7.6, just to confirm i half filled a 20ml vial with tank water and added 3 drops of b.blue (as it says on the bottle) and the result is very alkaline.

We have angels and rummy nose tetras and angels, java ferns, crypts and swords, hornwort and willow moss

Will a ph this alkaline affect things to the detrement to any of these things if so what do i do?

Regards Darren


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post #2 of 10 (permalink) Old 06-12-2008, 01:36 AM
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My pH is a steady 8.0. I have no problems with most fish or plants, including those who's high end pH is under 8.0. I find that the fish and plants acclimate just fine. The problem isn't necessarily the actual pH, but whether it remains steady or is bouncing high and low. You want to keep your pH steady, if at all possible.

You didn't say what your normal pH is. How much of a change is 7.6 from your normal pH? Is this the first time you've checked it since adding the CO2? What method of CO2 are you using (pressurized, DIY yeast)?

I'm sure others will come along to offer specifics on how the CO2 may be affecting your pH, but in answer to your original question, you shouldn't have problems with your fish or plants at 7.6. I have cardinal tetras, a blue german ram and an apisto cockatoo all living happily in my 8.0 pH water. Ditto on your plants. I have all you listed except the willow moss. Not a problem.

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post #3 of 10 (permalink) Old 06-12-2008, 01:40 AM Thread Starter
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Hi there,

yes that is the first time checking since co2 was added and my co2 is DIY yeast.

Regards Darren


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post #4 of 10 (permalink) Old 06-12-2008, 02:00 AM
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What was your pH before adding C02?


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post #5 of 10 (permalink) Old 06-12-2008, 02:22 AM Thread Starter
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Before co2 was added it was about 7-7.1


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post #6 of 10 (permalink) Old 06-12-2008, 02:25 AM
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A steady pH is better than a normal one...

Although I only have limited experience, one thing I can say almost for certain with regard to aquariums is that most of the time, less is more.

If everybody in there's happy and healthy, leave well enough alone.
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post #7 of 10 (permalink) Old 06-12-2008, 02:28 AM
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Quote:
Originally Posted by duzzy View Post
Before co2 was added it was about 7-7.1
Ok, then something is wrong. I don't know what--maybe the test kit, but C02 drives pH down--not up. There is something in your tank (probably a rock) that is hardening the water. Have you added crushed coral for any reason? Are you adding any buffers?


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post #8 of 10 (permalink) Old 06-12-2008, 03:32 AM Thread Starter
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Hi there,

my substrate is inert and I only have 3 rocks, will go to the lfs and get them to check my hardness as I dont have the kit

Regards Darren


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post #9 of 10 (permalink) Old 06-12-2008, 03:43 AM
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What kind of rocks did you get? Have you tested them with vinegar to see if they fizz?

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post #10 of 10 (permalink) Old 06-12-2008, 06:45 AM Thread Starter
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Hi there,

yes i did, just had my water tested and the hardness was 900 (dont know what the correct term is) I soaked and boiled my mopani driftwood in town water (extremely hard water) could that have done it?

just finished doing a 1/3 water change will continue doing that over the next few days

Regards Darren


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