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Old 09-16-2013, 12:21 AM   #1
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Concrete rubble as base rock? pics..

I just re did my stairs in front of my house and I ripped up some concrete and it looks like it should be nice base rock for my 135g tank. Here are pics. Now can I use this?? I will be cleaning the crap out of it.
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Old 09-16-2013, 12:33 AM   #2
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You'd have to cure it to avoid ph fluctuations which can take up to 6 months. Better off getting base rock imo
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Old 09-16-2013, 12:37 AM   #3
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You'd have to cure it to avoid ph fluctuations which can take up to 6 months. Better off getting base rock imo
I thought if you make your own rock out of concrete you have to let it cure for about 4-6 weeks. Not with concrete that has been cured for over 10years. Don't get me wrong I would put it in a big bucket with a few power heads for a little while.
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Old 09-16-2013, 12:38 AM   #4
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There's no telling what type of phophate and other junk have been absorbed by the concrete. Best to get some new base or live rock.
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Old 09-16-2013, 12:45 AM   #5
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There's no telling what type of phophate and other junk have been absorbed by the concrete. Best to get some new base or live rock.
I found Someone on cl that is parting out a tank and is asking 250 for 100lbs. I'll see if I can get it to 200. Not a bad deal... Or there is this company holeyrock.com, if you send them a pic of what size and what you would like your aqua scape to look like they will piece it together. And it only costs $79.00 per 50 lbs delivered.
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Old 09-16-2013, 09:55 AM   #6
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Don't use the concrete. As mentioned there is no telling what it has absorbed over the years. Also concrete is really dense. You want rock that is less dense.
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Old 09-16-2013, 10:24 AM   #7
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I wouldn't use it either. bulk reef supply and marco rocks have some fairly inexpensive dry rock options. Also check ebay.
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Old 09-16-2013, 01:55 PM   #8
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I wouldn't use it either. bulk reef supply and marco rocks have some fairly inexpensive dry rock options. Also check ebay.
I probably have around 75lbs to start with. When I have more money for more rock I will with dry rock. My full spectrum Cree dimmable LEDs just came in today.
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