false advertisement?

[Ca Nguyen]

i bought a 75 gallons aquarium at my LFS, and after filling it up with 2 inches of gravels, i started filling it with water up to 1 inches from the top. i kept tab of how many gallons i putted in the aquarium, and it came out to be 28.5 gallons.i highly doubt my gravels took up 45 gallons of water... i went back and complaint and they said that they never said it was 75 gallons, there was a piece of paper in there that said 75 gallons which i tossed out when i got home cause it was just a 8.5x11 that anyone can write on. beware guys, make sure you measure the aquarium first

[Ca Nguyen]

turn out my 20 gallons really only hold 17.5 gallons, my 10 gallons, my 10 gallons only hold 8.7 gallons, and my 5 gallons only hold 3.5 gallons... i've been keeping aquarium for almost a decade, how did i never notice?

[algarciajr]

A standard 75 gallon aquarium measures about 48"x18"x21" tall.

[supadave]

There should be a considerable difference between a 30 gallon tank and a 75 gallon tank . I just don't understand how you could have made the mistake . Just like Al stated above....a standard 75 gallon tank measures 48"x18"x21" .

[TaTeR ToT]

I agree, just to be sure for yourself, use this formula to calculate a tanks volume before purchasing it.


Length x width x height = divided by 231 = total volume.

[Ca Nguyen]

mine is 12"x17"x36" damn, that's a whole foot of aquarium!

[TaTeR ToT]

so

48x18x21 = 18144 divided by 231 = 78.54 gallons.

[TaTeR ToT]

sso using that method yours comes out to ~ 31 gallons.

[Lemon]

so
48x18x21 = 18144 divided by 231 = 78.54 gallons.

I'm really bad at math...where did 231 come from?

[Ca Nguyen]

231 cubic inches = 1 gallon

[Lemon]

Thank you. I'm a little smarter now. :) :)

[Lemon]

Measurement thing?

Speaking of measurements...some guy told me to never buy a hexagon tank, alway get a rectangular tank. He was gone before I could ask him why. Is this a cubic inch issue or a surface area thing?

[Ca Nguyen]

i'm not sure, my semy sex tank measure 3.5 gallons instead of 5. but i do have gravels and heavily planted

[imagirlgeek]

Speaking of measurements...some guy told me to never buy a hexagon tank, alway get a rectangular tank. He was gone before I could ask him why. Is this a cubic inch issue or a surface area thing?

I think that comes down to personal preference, and what kind of fish you are keeping. I wouldn't put aggressive fish in a hex because there would be less room for them to create their own territories, but that's just me.