Reply With Quote72lt if filled to the brim.Originally Posted by jaytip
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I’ve just been given a fish tank but the filter with it is not working and I need to buy a new one. The person who gave me the tank isn’t sure if the capacity but the dimensions are as follows
W600 D300 H400 all mm.
Can anyone help me by working out the litre capacity based on the dimensions.
I need to pick up a filter this morning as it’s currently running off the filter out of my much smaller 22L tank.
Cheers.
72lt if filled to the brim.
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72 litres
That's about 68 ltrs or 15 gallons. so you need something that will turn that over about three times an hour, depending of course on what sort of fish and how many you're putting in....
I'd keep the old filter running while the new one populates with bacteria too to give it a start....
72 litres.
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Thanks all, much appreciated.
in mm: 600*300*400
in cm: 60*30*40 = 72,000 cm3. (a cube sized 10*10*10 = 1,000 cm3 = 1 liter)
That equals 72 L.
Oops someone beat me to it
I think it is 72 litres
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Sorry! Missed the previous answers!
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I prefer the third answer. As Ibsen writes in An Enemy Of The People, "the majority is always wrong".
... and only when the water is exactly 2,2 cm under the brim...I prefer the third answer. As Ibsen writes in An Enemy Of The People, "the majority is always wrong".
The metric system is a wonderful thing. Possibly useful further information: 72 litres weighs 72 kilograms.
From Wikipedia: One litre of liquid water has a mass of almost exactly one kilogram, because the kilogram was originally defined in 1795 as the mass of one cubic decimetre of water at the temperature of melting ice (0 °C). Subsequent redefinitions of the metre and kilogram mean that this relationship is no longer exact.
I prefer the third answer. As Ibsen writes in An Enemy Of The People, "the majority is always wrong".... Well I was giving the actual amount of water that an aquarium of that size will hold, not the volume represented by the overall dimensions.
An aquarium is never filled to the top and usually contains sand, plants rocks etc so the actual volume of water likely to be in the tank is what is needed when calculating the filter requirements. That and the number and type of fish and planting type. It's all about water quality and rearing the right sort of bacteria ...There's theoreticians and then there's technicians...
With the caveat that, while this is true for water, it is not universal! (I understand that an aquarium will, most likely, contain water)
And come to that it also depends on the height above sea level .
it does depend if they are internal or external measurements - depends how thick the glass is - and also if you usually fill right to the very meniscus top.
But a smidge under 72l will be fine for any fliter measurements.
So...who's taken account of the thickness of the glass?
You need to assume the glass is 4mm thick, calculate the glass volume over the 5 surfaces (2x sides, 2x ends + bottom) and deduct that from your answer.
Just sayin'
Don’t forget to subtract the volume of the fish from the 72l.
Best to take up another hobby at this rate....
Brilliant
... and the turbulence they will make when 'wagging' their tales and fins... That disturbance (wave) will hit the inside of the glass and then, for the wave, the only way is up and over the top
Chosing a good pump isn't easy when you drop the initial question here... Oddball suggestion: revise your plan! Change the 'aquarium' into a 'terrarium' with lizards or snakes. No need for a pump. Just saying.
It’s good to see mathematics still has its plaice.
Me, I just go to the specialist shop with the measurements and a list of the type/number of fish it may hold and ask the expert. Why have a dog and...........
- - - Updated - - -
Yes I saw that.
For an extremely versatile converter of all sorts of units (for Windows) have a look HERE. It's free.
But the imperial system is more poetic - a pint of water weighs a pound and a quarter.
My father used to tell my Mum (who is clueless here) that 'a litre of water is a pint and three quarter'.
Near enough - that would be 994ml
I heard that a pint’s a pound the world around
Just measured it at 19.5 ounces, so a pint of water is in fact a pint and a quarter, or thereabouts.
Last edited by Templogin; 25th October 2019 at 14:21.
Will it be OK to wear a Speedmaster whilst cleaning it?
On a related note “two and a quarter pounds of jam, weighs about a kilogram”
What about two and a quarter pounds of marmalade?
Nope, doesn't rhyme, and there are two many sylables so it throws the metre out.
I'm also going to say 72lts........
Because most did!.
Good to see the OP saying maths as opposed to math.
"Once is happenstance. Twice is coincidence. The third time it's enemy action."
'Populism, the last refuge of a Tory scoundrel'.
I`m going to go with the flow and say 72 litres.
Is it 72 litres?
I must try to find out how much water there is in our local lake. Also, how big the filter is, who changes a third of the water every month, who takes a regular sample from the lake to the local aquarist shop for testing and who limits how many fish there are in it.
Best Regards - Peter
I'd hate to be with you when you're on your own.
If the measurements are external or internal?So...who's taken account of the thickness of the glass?
You need to assume the glass is 4mm thick, calculate the glass volume over the 5 surfaces (2x sides, 2x ends + bottom) and deduct that from your answer.
Just sayin'
19.02 US gallons. - just incase the filter is coming from the US
Whoever does not know how to hit the nail on the head should be asked not to hit it at all.
Friedrich Nietzsche
1 pint = 20 fluid ounces.......... or it was when I was at school!
A pint of water weighs a pound and a quarter..........10lbs to a UK gallon.
Strange that jam is still usually sold by the pound (454g).
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