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post #1 of 6 (permalink) Old 05-07-2015, 07:35 PM Thread Starter
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Ph

I am having a real hard time keeping my ph up in my tank my ph test is giving me my lowest reading which is 6 on the test ... I am wondering if adding some limestone to my decor will help any thoughts ?
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post #2 of 6 (permalink) Old 05-07-2015, 07:50 PM
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Unless something in your tank is unhappy due to that low PH you probably dont have to worry about it.

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post #3 of 6 (permalink) Old 05-07-2015, 09:20 PM
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+1 I wouldn't worry a whole lot about pH... particularly if your pH is dropping from CO2 injection.

KH/Alkalinity on the other hand you might want to check on. If that's really low you might want to add some for buffering...

I'd generally suggest baking soda for raising KH, or something like seachem alkaline buffer (which is mostly baking soda, but as a bit of other stuff) and introduce it *slowly*. Rapid KH shifts are more likely to kill than pH shifts.

Limestone, crushed coral, or aragonite will also work, and they work slowly, but they'll also raise your GH (calcium/magnesium) along with the KH, which may or may not be desirable.

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post #4 of 6 (permalink) Old 05-07-2015, 09:42 PM Thread Starter
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its killing my snails
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post #5 of 6 (permalink) Old 05-07-2015, 11:40 PM
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Test the GH and KH.

Use Seachem Equilibrium to raise the GH. This is calcium and magnesium. Snails need it in the water, they often do not get enough in their diet.

Use baking soda for KH. Add 1 teaspoon per 30 gallons to raise the KH by 2 german degrees of hardness. This will raise the pH from 'below the test' (upper 5s) to 6.2.
Then a few days later add that much again. And again a few days later.
By raising it in 2 degree jumps you are allowing the fish to adapt to the new levels.

If both GH and KH are low, then coral sand, aragonite, dolomite sand, oyster shell grit (Sold for caged birds) are all good to add to the filter (I use a nylon stocking). They will raise both GH and KH slowly.

Not good to JUST add these to the filter: when they have done what they need to for the water it will be time for a water change, and you will send the GH, KH and pH on a roller-coaster ride. Not good at all.
Set up the new water with Equilibrium and baking soda to the level you want before a water change. Then the materials in the filter will act to stabilize the levels.
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post #6 of 6 (permalink) Old 05-07-2015, 11:40 PM
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Quote:
Originally Posted by BrentB View Post
I am wondering if adding some limestone to my decor will help any thoughts ?
I have some mortar based hardscape in my tank.
If left alone with no CO2 my pH would be about 8.4
With CO2 I run about 7.1
As stated it will raise TDS/GH.
I water change based on TDS readings(400) about every 2.5 weeks.
I bring TDS down to 250 with a water change.


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Growing is not that difficult.
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