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Old 03-14-2012, 12:52 AM   #1
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Coral rocks for malawi tank

Hi guys, I'm picking up some coral rocks soon and thinking of putting them in my Malawi tank.

Has anyone used them before? Do they buffer ph? Are they safe to use? They are not live rocks and have been dried for a while.

Any advice is appreciated.
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Old 03-14-2012, 01:45 AM   #2
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I have not personally used them, but I do know for a fact that they are known and used for dramatically raising the pH to make the pH adequate for fish, E.G. Malawi tanks
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Old 03-14-2012, 08:23 AM   #3
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Thanks. They were previously used in a marine tank.
Not sure if I could put them all in my 4ft tank at one go, they are about 15-20kg. I'm afraid that they would raise the ph dramatically thus harming the fish.
Anyone able to advise?
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Old 03-14-2012, 09:44 AM   #4
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What is your ph at currently?
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Old 03-14-2012, 11:36 AM   #5
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Quote:
Originally Posted by joel618 View Post
What is your ph at currently?
Yes, what is your current pH? That would help to decide.
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Old 03-14-2012, 01:54 PM   #6
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I have crushed coral in all 3 cichlid tanks and large pieces in my one peacock tank. No issues and keeps the ph high like I want it.
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Old 03-14-2012, 03:10 PM   #7
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I have crushed coral in all 3 cichlid tanks and large pieces in my one peacock tank. No issues and keeps the ph high like I want it.
Yeah, they are pretty handy when you need to raise the pH.
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Old 03-14-2012, 05:24 PM   #8
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Quote:
Originally Posted by phoenixkiller
Yes, what is your current pH? That would help to decide.
My current ph is around 7.8. I'll soak them in water first and test if they increase ph dramatically.

Would prefer Texas holey rock but they are quite expensive.

Thanks for the advice everyone.
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Old 03-16-2012, 08:43 AM   #9
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I put the rock in.
Just thought I'd share the photos.
Please feel free to comment.

Sorry for the low resolution. Taken from phone.
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Old 03-16-2012, 09:42 AM   #10
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Looks great.
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Old 03-17-2012, 01:44 PM   #11
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Looks great.
Yep, hope it works out alright!
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