Help with lowering PH - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 12-27-2011, 10:20 PM Thread Starter
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Mikiel1984's Avatar
Help with lowering PH

Hello TFK Forum!

So I am back again to ask about managing PH levels in my tank. The issue is that the tap water I am using to fill my tak with has a PH of about 7.8 In the tank the measurement I got was around 7.6. It could be the driftwood helping out but it is still not at neutral which is where I would prefer to have it.

Does anyone have any advice on what I should do to lower this? I am trying to avoid chemicals if at all possible but if you know of something safe I could use I would be glad to consider it.

Thanks in advance and below are a few photos on my tank.

- Mike

75 Gallon

7 Discus
6 Neon Tetras
4 Black Neon Tetras
4 Glass Catfish
1 Siamese Algae Eaters
2 Bumblebee Goby
1 Bristle Nose Pleco
1 Gold Nugget Pleco

3 Panda Corys
2 Salt and Pepper Longfin Corys
2 Albino Corys
2 Jullii Corys
3 Emerald Corys
3 Sterbai Corys

7 Gallon

1 Betta
5 Snails
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post #2 of 3 Old 12-27-2011, 10:29 PM
zof's Avatar
Peat seems to be the best organic solution but this will take it lower then your target 7, to be honest with you after researching the issue, modifying the pH of tanks becomes a very cumbersome task. From originally trying to hit your targets to trying to keep the pH stable where you want it through water changes and everything else that might change it. 7.6-7.8 is not too horrible, you should have alot of stocking choices there.
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post #3 of 3 Old 12-28-2011, 01:18 PM
Byron's Avatar
I agree that attempting to adjust pH can be troublesome. But if you go this route, you must know the hardness numbers for the tap water as this impacts pH. You can read the "why" here:

The article also suggests how to dilute the hardness to thus lower pH safely, and we can discuss that more if you like. We will need to know your tap water GH and KH, this you can get from the water supply folks, they may have it on their website.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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