How to measure a tank

[TMartinez]

I bought a tank of Craigslist and it was posted as a 90g. However I'm not so sure. It measure 48 inches in length, 18 wide... but how do you measure height. Is it the overall height... just the glass.... halfway between trim...?

 

[bbortko]

half way between the rims, this is the actual amount of water that will be in the tank.

 

[TMartinez]

48X18X22.... odd size

 

[bbortko]

the process isn't exactly standardized with manufacturers, some use total height but internal dimensions are the same. Definitely taller than a 75g

 

[Brooks74]

I always measure the complete height of the tank including the trim.Most tanks dont hold the exact amount of water as they are advertised as .But its usually pretty close within a gallon or so.

 

[crisper]

i just measure outside dimensions close enough.

 

[health9890]

I always measure the complete height of the tank including the trim.Most tanks dont hold the exact amount of water as they are advertised as .But its usually pretty close within a gallon or so.