90 or 75 gallon?

[poiuy704]

My living room tank measures 48x18x24 I bought it as a 75 gallon and lately I have seen a few tanks with the same measurements selling as 90 gallons. I'm assuming this is an imperial vs a US gallon thing. I've always treated it as a 75 gallon when medicating fertilizing etc. Should I be doing this or do you think it should be treated as a 90 for these purposes? I guess it would also stocking limitations as well as filtration needs.

[ninez]

Fish Aquarium and Tank* Sizes and Characteristics, starting an aquarium, buying equipment, choosing tanks

75 G is shorter

[Cichlid2010]

Looks like your tank is more than 90 gallon

Here are the standard measurements:
75 Gallon 48 1/2 x 18 1/2 x 21 3/8
90 Gallon 48 1/2 x 18 1/2 x 25 3/8

[poiuy704]

Looks like your tank is more than 90 gallon

Here are the standard measurements:
75 Gallon 48 1/2 x 18 1/2 x 21 3/8
90 Gallon 48 1/2 x 18 1/2 x 25 3/8

oops that should have been 48x18x24. so are these US or imperial gallons or maybe I shoul stop showing my age and just start using litres

[SeaHorse_Fanatic]

In inches:

(l x w x h) / 231

[kelownaguy]

oops that should have been 48x18x24. so are these US or imperial gallons or maybe I shoul stop showing my age and just start using litres

I get 89.7 US gallons.
Probably more like 82 using inside dimensions.
Likely close to 75 w/substrate etc.

In Canada at least,US gallons rule the aquarium world.
Nobody wants to "downsize" thier tank by expressing volume in imperial gallons.

[BelieveInBlue]

Its a standard 90g. With all the decor its probably closer to 80g, but still you should treat it as a 90 when stocking, medicating, etc. Unless otherwise stated, a tank volume will always be said in US gallons; I find that this is usually the case in the aquaroum hobby, even if you speak to people from Britain, Australia, etc.