Moonreef
Active Member
No, not a rhetorical question nor is it a trick question or is it....
I, like many people, thought 40 gallons would be the answer but after browsing and reading forums and the like....I found several posts of people saying its 47 gallons. Yeah, the heck you say. So being anal, I decided to do it by the numbers as follows,
A standard 40 breeder by aqueon is 36 3/16" x 18 1/4" x 16 15/16. Let's round down to give everyone extra benefit, 36x18x16. If my elementary math serves me correct we would find volume by multiplying LxWxH. So the product would be 10,368 cubic inches.
How many cubic inches in a gallon? Glad you asked....NIST Handbook 44, 2012 edition, Appendices C states "1 gallon (gal) = 231 cubic inches". Whereas 1 liquid gallon=32 gill and 1 gill=7.21875 cubic inches. 32x7.21875=231....what's a gill you ask? It's an old school measurement that was used for measuring alcohol/spirits....moving on. So, 10,368 cubic inches divided by 231 cubic inches=44.8 gallons. Perplexing....yeah...me too. Remember, I was conservative and rounded down. Rounding to the closest number yields the product 47.68 gallons.
So, what the heck is up with that?
Well let's take the glass thickness out of the equation and see what we have for internal measurements. My aqueon 40 breeder has 3/8 glass so, 35 7/16 x 17 1/2 x 16 9/16. Multiply those out and you get 35.4735x17.5x16.5625=10,281.77 cubic inches. 10,281.77/231=44.5 gallons.
It appears as though my "40 breeder" is actually 44.5 gallons. Any thoughts? Yeah...I just did that up there because I had to know and figured I'd share but c'mon, you know your thinking about your 55 now. LOL
I, like many people, thought 40 gallons would be the answer but after browsing and reading forums and the like....I found several posts of people saying its 47 gallons. Yeah, the heck you say. So being anal, I decided to do it by the numbers as follows,
A standard 40 breeder by aqueon is 36 3/16" x 18 1/4" x 16 15/16. Let's round down to give everyone extra benefit, 36x18x16. If my elementary math serves me correct we would find volume by multiplying LxWxH. So the product would be 10,368 cubic inches.
How many cubic inches in a gallon? Glad you asked....NIST Handbook 44, 2012 edition, Appendices C states "1 gallon (gal) = 231 cubic inches". Whereas 1 liquid gallon=32 gill and 1 gill=7.21875 cubic inches. 32x7.21875=231....what's a gill you ask? It's an old school measurement that was used for measuring alcohol/spirits....moving on. So, 10,368 cubic inches divided by 231 cubic inches=44.8 gallons. Perplexing....yeah...me too. Remember, I was conservative and rounded down. Rounding to the closest number yields the product 47.68 gallons.
So, what the heck is up with that?
Well let's take the glass thickness out of the equation and see what we have for internal measurements. My aqueon 40 breeder has 3/8 glass so, 35 7/16 x 17 1/2 x 16 9/16. Multiply those out and you get 35.4735x17.5x16.5625=10,281.77 cubic inches. 10,281.77/231=44.5 gallons.
It appears as though my "40 breeder" is actually 44.5 gallons. Any thoughts? Yeah...I just did that up there because I had to know and figured I'd share but c'mon, you know your thinking about your 55 now. LOL
