[Priscilla]

I added a small piece of limestone rock hidden at the back of my tank to raise the pH. Right now the pH is just over 8.0.

I see.
How fast does the limestone take to raise the pH?

Yup, ocean rock is limestone and is great for raising the PH, Google ocean rock or Texas holey rock as its the same stuff but just called something different in the US compared to the UK.

I'm not sure on speeds of it raising PH as it depends on your tanks PH already, water volume and the rock size :p


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Ah, okay! I'll try to find it in my LFS before searching/buying it online. Hope it's not too expensive!

[odin]

I see.
How fast does the limestone take to raise the pH?

Yup, ocean rock is limestone and is great for raising the PH, Google ocean rock or Texas holey rock as its the same stuff but just called something different in the US compared to the UK.

I'm not sure on speeds of it raising PH as it depends on your tanks PH already, water volume and the rock size :p


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Ah, okay! I'll try to find it in my LFS before searching/buying it online. Hope it's not too expensive!

Looks like this:

https://goo.gl/images/S387P0


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[Priscilla]

I see.
How fast does the limestone take to raise the pH?

Yup, ocean rock is limestone and is great for raising the PH, Google ocean rock or Texas holey rock as its the same stuff but just called something different in the US compared to the UK.

I'm not sure on speeds of it raising PH as it depends on your tanks PH already, water volume and the rock size :p


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Don't get it confused with 'live rock' stay away from that as it will pollute your tank when all the ocean life dies off from it in the brackish conditions.


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Oh okay, I'll take note of that! Thanks for the advice!

[caine]

The stuff you want is also known as "dry rock" in the reef community.

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[Priscilla]

The stuff you want is also known as "dry rock" in the reef community.

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Thanks Caine!! I'll keep a lookout!