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Old 09-12-2012, 01:59 PM   #1
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Live rock

I have a lot of live rock between three tanks and don't have any idea how many pounds I have. How would I tell how much I have?
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Old 09-12-2012, 02:36 PM   #2
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Weigh it.
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Old 09-12-2012, 03:03 PM   #3
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Convict is right. Live rock varies a lot in density and internal structure so there is no reliable way to estimate. Gotta actually weigh it.
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Old 09-12-2012, 05:55 PM   #4
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Quote:
Originally Posted by Convict2161 View Post
Weigh it.
5 gallon pail and a scale
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Old 09-12-2012, 09:13 PM   #5
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Sorry. Don't have a scale. Any other options?
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Old 09-12-2012, 10:15 PM   #6
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A real cheap scale from a Walmart or Target.

http://www.walmart.com/ip/Sunbeam-Ro...White/15524356
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Old 09-13-2012, 01:30 AM   #7
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Why?

I'm asking because the important thing isn't really the weight, it's the surface area. Some rocks are much denser and have less surface area per lb. nice dead coral rock has way more surface area for the BB to live on.
I would take 1 lb of porous coral rock over 2 lbs of man made rock with no cavities. And they'd likely be similar sized.
Not that all man made rock is bad. I have some nice stuff as well.
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Old 09-13-2012, 03:11 AM   #8
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Why?

I'm asking because the important thing isn't really the weight, it's the surface area. Some rocks are much denser and have less surface area per lb. nice dead coral rock has way more surface area for the BB to live on.
I would take 1 lb of porous coral rock over 2 lbs of man made rock with no cavities. And they'd likely be similar sized.
Not that all man made rock is bad. I have some nice stuff as well.
Why? Because he still needs to know how much weight he has
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Old 09-13-2012, 07:14 PM   #9
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Doesn't a fish only tank take less live rock than a reef tank?
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Old 09-13-2012, 07:39 PM   #10
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Doesn't a fish only tank take less live rock than a reef tank?
Only if you think it does. In reality if your tank looks good and you like it leave it alone. You can have a little or as much as you want. Within reason. My 90 has about 120LBs. In comparison I recently saw a 120gal tank that had about 40lbs of Pipe organ coral skeleton. That tank looked more full then mine.
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