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reef93
10-09-2011, 03:25 AM
After reading Blinks's poll about sand or no sand, I have decided to put the sand back into my reef tank. I want no more than 1" of sugar sand, just enough to cover the bare bottom look and to have a wrasse fish in the future. Live sand is expensive, I don't want to spend more money than I need to, but I can not figure out how much sand I need for my 48" long with 18" width. Can someone with good math tell me how many lbs of sand do I need for my tank ?
Thanks for your help.
Blom
10-09-2011, 03:39 AM
After reading Blinks's poll about sand or no sand, I have decided to put the sand back into my reef tank. I want no more than 1" of sugar sand, just enough to cover the bare bottom look and to have a wrasse fish in the future. Live sand is expensive, I don't want to spend more money than I need to, but I can not figure out how much sand I need for my 48" long with 18" width. Can someone with good math tell me how many lbs of sand do I need for my tank ?
Thanks for your help.

Volume = 48 * 18 *1
= 864 Cubic inchs

Wet sand has an approx density of 0.0694 lbs/in3 (Note this is just a google on wet sand density, I have no Idea what the actual caribsea live sand density would be but I could guess it would be in this ballpark)

Which makes approx 60 lbs.

But if you looking to save money why buy live sand... just buy sand.... it will become "live" in time.
Aquattro
10-09-2011, 03:39 AM
Google sand calculator for aquarium, lots of hits...
Blom
10-09-2011, 03:41 AM
Math is more fun :crazy:
babyreef
10-09-2011, 04:02 AM
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reef93
10-09-2011, 04:03 AM
That was a quick help :biggrin: thanks guys. I guess I will go get 60lbs of sand. Live sand is over $100 for 60 lbs, if dry sand is not too much the difference in price at J&L, I had just better get live sand without going through the hassle of rinsing.
reef93
10-09-2011, 04:05 AM
Pick any number from 1-9

X it by 3

Now Add 3 to that number

Now X that number by 3

Now take that number (eg. 11) and add the (digits) numbers (eg. 1+1) (eg. 1+1=2)

Post your answer here

Are you kidding me, I didn't even completed high school. I have no idea
about this :redface:.
babyreef
10-09-2011, 04:09 AM
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reef93
10-09-2011, 04:13 AM
I pick number 3 and the answer came number 6.
Hey, don't laugh if I am wrong :biggrin:
babyreef
10-09-2011, 04:22 AM
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Blom
10-09-2011, 04:23 AM
See math is fun lol
babyreef
10-09-2011, 04:38 AM
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babyreef
10-09-2011, 04:40 AM
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reef93
10-09-2011, 02:40 PM
If you picked the number 3...

X 3 = (3 X 3 = 9

+3 (3+9 = 12)

X 3 (12 X 3 = 36)

3+6 = 9

Final answer is 9


See ... I told you I can't do it :redface:
StirCrazy
10-09-2011, 03:28 PM
The point is, it doesn't matter which number you pick between 1-9

You will always get the same answer (9). Great bar trick.

Try it with all the numbers between 1 and 9 and you will see math is fun really, just looks intimidating.

thats not math its a bar room trick.


Reef93

if your going to buy two bags grab one more.. just make sure you can take it back if you don't use it. much better to return a bag then have to run buy another one at the last min.
babyreef
10-09-2011, 03:47 PM
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Proteus
10-09-2011, 03:56 PM
[QUOTE= Great bar trick. .[/QUOTE]

My bar math was always adding 1 more please. Lol
Blom
10-09-2011, 04:40 PM
thats not math its a bar room trick.


Reef93

if your going to buy two bags grab one more.. just make sure you can take it back if you don't use it. much better to return a bag then have to run buy another one at the last min.

Addition is math yes :lol::lol::lol:

Besides that this is great advice, I cant tell you how many times Ive had to run to a LFS for a wee bit more of something. Or better yet Home depot for one more 90 degree PVC joint.
StirCrazy
10-09-2011, 06:04 PM
Addition is math yes :lol::lol::lol:



yes it is math but pointless math or if you rather entertaining math..... hence bar tricks. and in no way did that bar trick formulae relate to the question posed by the OP. :wink:

Steve
babyreef
10-09-2011, 06:25 PM
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StirCrazy
10-09-2011, 10:51 PM
Correct.

And yours was much better, basically I have no idea so just buy a bunch of it and take back what you don't use, brilliant!


really... come on now.. the math was already done and it was determined that about 2 bags should do it.. I said buy 3 just incase...

if we really wanted to we could have got a random sample of the sand he was planning on using, taken an average crossection volume then applied that to the volume to be filled.. but why.. so we could give a bag count to three decimal places.. get real and get over that not everybody things bar math is entertaining.

Steve
babyreef
10-10-2011, 02:38 AM
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reef93
10-10-2011, 02:44 AM
This might help http://www.aqua-
calc.com/calculate/gravel-rectangular-solid


No more calculating for me :mrgreen: I hate math since I was in grade 6. I will just get one extra bag as Titus99 and StirCrazy said, but I will make sure I can return it later if I don't need it.
Thanks for the link, anyway.