working out tank size

[paulywally]

hello there, im paul, 29 in the uk, currently have a 180 litre corner tank with 2 v large oscars i have saved, on friday i will be receiving my juwel rio 400, it is supposed to be a 400 litre tank or 90 uk gallons but by calculating the size 151cm x 51cm x 66cm its more like 105 uk/ 135 us gallons? how come?

 

[Sab_Fan]

according to the Juwel website, the actual volume of the aquarium is 450L . . . guess they don't want to call it the Rio 450

it's most likely because the measurements you have are exterior measurements, but the volume is based on interior measurements

 

[paulywally]

ar, i see thanx for that, getting excited now, roll on friday