Newbie with question, about tank size. I do apartment maintenance, an people will leave behind all sorts of stuff. An i been wanting an aquarium for awhile. But the formula i have to calculate total water volume is for pools an in foot measurements, I believe that it's a 30 gallon tank, done by arm length at the local pet shop. Considering the 1 inch of fish per gallon rule, i would like to make sure i'm ok. It's a hexagonal tank, 20.5 " deep , length 18.5" (done by adding two glass panels length) widith 9.25",have problems with some fish loss. I will come back in a few to tell the rest of the story(just got home). Not the greatest typer, but trys,so please exucuse my spelling, BBL Thanx
Newbie with question
- Thread starter tjr635
- Start date
To calculate volume in gallons, the formula is LxWxH, divided by 231. Please do not use the 1 inch per gallon rule, or any other "rule" for stocking your tanks. Thier are people here who have had 20+years of expierence who can offer much better judgement of wether or not your tank is/will be overstocked than any "rule of thumb".
And oh yes, welcome to AC! :hi: .
And oh yes, welcome to AC! :hi: .
I am coming up with about 19.73 gallons. With hexes, the LxWxH doesn't work straight up--it requires a special formula. You have to calculate the area of the hex first. The shortcut for the area of a hexagon is 2.59808 x a x a, where a = length of one side of the hexagon. Then multiply by the height (or depth). To get gallons, divide by 231, the number of cubic inches in a gallon.
So, in your case:
2.59808 x 9.25 x 9.25 x 20.5 / 231 = 19.73 gallons.
This completes todays Math Minute. Thanks for tuning in! :read:
So, in your case:
2.59808 x 9.25 x 9.25 x 20.5 / 231 = 19.73 gallons.
This completes todays Math Minute. Thanks for tuning in! :read:
BTW, this discussion has inspired me to add an online calculator for hexagonal aquariums to my website. See my sig.