You find out your 75 gallon tank that you have had close to 3 years is really a 90 gallon tank!!!! :?: :!:
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Betty said:Same footprint, only taller?
I guess that shows you don't have to be too exact with your measurements of dechlorinator.![]()
It wouldn't be good to not know how many gallons if you were treating with medication though.![]()
dmopar74 said:LxWxH in inches divided by 231 will give you gallonage pf your tank. If you want to get depressed measure the interior dimentions and actuall water height.