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Old 01-01-2012, 02:32 AM   #1
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Substrate

I am going to use aragonite for substrate but I have left over crushed oyster shells from the DIY rock. Can I use the crushed oyster shells underneath the oyster shells?
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Old 01-01-2012, 02:38 AM   #2
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Quote:
Originally Posted by Amicus
I am going to use aragonite for substrate but I have left over crushed oyster shells from the DIY rock. Can I use the crushed oyster shells underneath the oyster shells?
Underneath the aragonite.
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Old 01-01-2012, 02:39 AM   #3
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Quote:
Originally Posted by Amicus
I am going to use aragonite for substrate but I have left over crushed oyster shells from the DIY rock. Can I use the crushed oyster shells underneath the oyster shells?
I meant underneath the aragonite.
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Old 01-01-2012, 03:15 AM   #4
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you should be fine. If you're going with a DSB, it's better to have the courser substrate on the bottom and the finer substrate on top.
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Old 01-01-2012, 11:28 AM   #5
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The finer sand will sift through to the bottom in time. I know I have seen it happen to both my sw and fw tanks.
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