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RE: Tank Size?

GRUBYGUPPY — Thu, 18 Sep 2008 18:34:47 GMT

math-only aquarium (9/18/2008)

P.S., My physics teacher used to check his answer key using my test answers. However, I'm not an A student in every class or even in every math class--I pick and choose my battles like everyone else.

Every great general chooses his battles,those he has no choice in he fights on his terms:P

RE: Tank Size?

jsmith11618 — Thu, 18 Sep 2008 16:58:58 GMT

I wish I was 1/2 as good at math as MOA is.

RE: Tank Size?

math-only aquarium — Thu, 18 Sep 2008 16:28:38 GMT

P.S., My physics teacher used to check his answer key using my test answers. However, I'm not an A student in every class or even in every math class--I pick and choose my battles like everyone else.

RE: Tank Size?

math-only aquarium — Thu, 18 Sep 2008 16:25:19 GMT

Hi Again,

I just wanted to let you guys know that I added a spreadsheet to my "Freshwater Stocking Guide" thread in the pinned topics that covers all the basic aquarium equations. Also, it uses the precise formula for bowfront aquariums, FattFishy, and thus might be a bit more useful than the really complicated equations that I posted in this thread.

MOA

RE: Tank Size?

GRUBYGUPPY — Thu, 18 Sep 2008 04:40:54 GMT

JoshA1977 (9/17/2008)

MOA = Mathmetician

MOA I bet you aced all the math tests in school, didn't you?

I bet he not only aced the tests,but made the teachers feel rather insecure!:w00t:

RE: Tank Size?

JoshA1977 — Wed, 17 Sep 2008 21:00:16 GMT

MOA = Mathmetician

MOA I bet you aced all the math tests in school, didn't you?

RE: Tank Size?

FattFishy — Tue, 09 Sep 2008 19:19:04 GMT

Wow MOA... thanks for the formulas! I was looking for them...

RE: Tank Size?

GRUBYGUPPY — Tue, 09 Sep 2008 17:50:40 GMT

math-only aquarium (9/9/2008)

Hmm,

You do realize the the industry size isn't the true size, right? The tank sizes that pet shops and manufacturers use are close to the actual capacity, but they aren't exact. In truth, they are labels of conveneince and simply make differentiation easier. To know how much medication to use, judge stocking capacity, etc. you should know the true amount of water your aquarium holds.

MOA

I will know the true capacity when I fill it,I use 5gal pails,well at least within a few percentage points.:)

RE: Tank Size?

princessotfu — Tue, 09 Sep 2008 16:19:24 GMT

math-only aquarium (9/9/2008)

Hmm,

MOA

Too true. Even the labels that are rounded to an easy number are still judged from the outside dimensions, and the volume decreases even more when you consider the space taken up by the substrate, and that fact that few people fill their tanks to the absolute brim. You could, in theory, be 5 or 10 gallons off in the true capacity of the larger tanks, or shallower tanks, and this isn't something to sneeze at if you are trying to safely medicate your tanks.

RE: Tank Size?

math-only aquarium — Tue, 09 Sep 2008 14:11:47 GMT

Hmm,

MOA

RE: Tank Size?

GRUBYGUPPY — Tue, 09 Sep 2008 12:14:15 GMT

math-only aquarium (9/9/2008)

Here are some formulas that might be helpful:

The above formulas are equations that can be used to approximate the volume of a given aquarium in gallons. The formula for a bowfront is actually more complicated (unless you have a scientific, two-line calculator) than what is here. As such, the one you see is the simplified form and underestimates a little, but it is within a couple percentage points most of the time (error < 2%)

I found a simpler way to get the answer I was looking for,I went to my LFS gave them the dimensions,they looked it up and told me it was a 23gal. long:)

RE: Tank Size?

math-only aquarium — Tue, 09 Sep 2008 10:55:10 GMT

Here are some formulas that might be helpful:

MOA

RE: Tank Size?

FattFishy — Mon, 08 Sep 2008 14:57:09 GMT

Then does anyone know a formula for a bowfront?

RE: Tank Size?

princessotfu — Mon, 08 Sep 2008 07:07:36 GMT

Nikita, I don't know just how irregular the fountain is, but if there's a way to calculate the volume, then you can just divide that by 231. So if it was a circular fountain with a flat bottom, then you want the equation for the volume of a cylinder, for instance. If it's a basin shape, you would use the equation for a sphere times a fraction.

If it's a truly random shape, then you ask MOA. haha.:P

RE: Tank Size?

GRUBYGUPPY — Sun, 07 Sep 2008 21:36:17 GMT

David Lass (9/7/2008)

If you multiply the 3 dimensions and divide the total by 231 -- it gives you the US gallons of the tank.

Thanks for the info, I will add this to my little book of usefull tidbits:)

RE: Tank Size?

Nikita — Sun, 07 Sep 2008 20:21:55 GMT

I actually needed to know the gallon rating of a fountain outside one of the classroom buildings here at college - how would one work the formula for a more irregular setup? It's really more of a semicircle, so can I alter the formula to estimate its size?

RE: Tank Size?

David Lass — Sun, 07 Sep 2008 18:46:44 GMT

If you multiply the 3 dimensions and divide the total by 231 -- it gives you the US gallons of the tank.

Tank Size?

GRUBYGUPPY — Sun, 07 Sep 2008 18:39:00 GMT

I was given a complete tank setup(minus stand) today,the person had no idea what the gal. capacity was.The tank is 36x12x12, if anyone knows what the capacity(gal) is the info would be appreciated.;)