Fish Tank Sizes

[Mr-H]

I am looking at getting a (first for me) fish tank/aquarium. I am confused over the first question - size, and would like some advice please. On the one hand, the web site gives a tank of this dimension 39 x 62 x 72 cm as having a volume of 130 litres, whilst an on-line fish tank volume calculator shows this size has a volume of 175 litres. The difference is vast - 45 litres or (in old money) 10 Gallons. Why the difference please?

[The Builder]

The dimensions equate to 175 litres, but I guess you simply don't fill it right to the top........... would be a bit messy ;o)

[Prudie]

The exact volume of that tank is 174096 cm3 so that is a volume of about 175 litres but maybe the dimensions of the web site tank includes sitting on a base and a top (ie it's the total size) - so it wouldn't all be filled with water.

[malagabob]

Dont forget a sturdy base for it to sit on. ! gallon of water weighs 10lbs in old money.

[jomifl]

Even allowing for the thckness of the glass and an air space at the top there s still a discrepancy of 35 litres. Do the overall dimensions that you quoted include the cover/light unit?

[hammerman]

Ok, the tank capacity is 175 litres but you need to allow displacement for sand or gravel, plus obviously not filling it to the top. You usually take away about 15% from the 175 litres which would give you approx 150 litres.