PH lowering driftwood, PH increasing rocks... can it equal out?

Slowcheetah

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Hi,

My water source for changing water is 7.5ish.

I have HEAPS of sandstone available to me, but I am also aware that sandstone/limestone can increase pH. Would Sandstone skyrocket PH into 8+? Or more likely to just maintain the mid 7 range?

Following this, would having a piece of driftwood that leeches tannins and therefore lowers pH, be neutralised by adding something like sandstone too?

Cheers
 

Flyfisha

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We would need to know the KH of your water before making a statement.
However even with the best of intentions nobody can really say for certain. Why not get a test result for KH and post it then still do a bucket test for a few weeks using an air stone if you have one.
 
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Slowcheetah

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I have a KH test on order to be delivered soon.

whats the importance of the air stone with the bucket? Can I just swirl it around manually occasionally?
 

Sorg67

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I have driftwood in four of my tanks and have notice no measurable decrease in PH. My KH is about 8 degrees. My PH is consistently around 8.2 both in tanks and tap water.
 

Flyfisha

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Yes you can just swirl it around manually occasionally.

i think I have the numbers correct Sorg67 ?
With a KH over 6 the PH will be stable or a lot harder to change, however you want to word it?
Adding RO water is an option ?
 

Sorg67

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That makes sense. I did not think of that. It makes sense that a my KH, driftwood might have a minimal impact on PH, but someone with lower KH might see driftwood affect their PH more than I did.

I also experimented with a PH down product when I wanted to lower PH for a Betta. I found that it took a lot to move my PH. That make sense too. And it makes sense why the product I used could not provide dosing recommendations. They just advocated experimentation.
 

RDcompton03

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Sandstone and limestone are two different things. Limestone will raise ph. Sandstone will not.
 

A201

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Most true sandstones should be inert. Limestone will up the PH. Driftwood will likely knock the PH down a little.
The 600 lb. Gorilla in the room is; weekly 50% plus water changes should keep your water chemistry relatively stable no matter what minerals or wood are present in your aquarium.
 
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Slowcheetah

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Guess I’ll have to wait for the tests to arrive to give it a go. Thanks all!
 

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