Anyone Good At Math

[Just_Another_One]

ive got a 65 gallon tank and i take out six buckets worth each time i do a water change.

each bucket is twelve liters....

id like to know what % im taking away. ive tried to figure it out but i just cant do it, my brain doesnt seem to want to work that way...i guess theres a reason why i dropped out of school lol.

if anyone can figure it out that would be great, and if im missing any info needed just let me know. Thanks

 

[Truck]

roughly 20%

 

[Ace Of Spades]

roughly 20%

It also depends on what gallons they are, Imperial or US

 

[Truck]

i did it on imperial

 

[Just_Another_One]

roughly 20%

It also depends on what gallons they are, Imperial or US

wow you guys are quick.... thanks

i live in Canada so im assuming it is in US Gallons but i really have no idea, i bought the tank at one of the Big Als stores around here...

 

[Truck]

well about 25% in us gallons

 

[shroob]

Their location is Cananda, which I think uses US gallons.

According to an online calculator you're changing 29% of your water.

 

[celaeno]

29% is correct. here's how you do it:

12 liters times 6 = 72 liters

there are 3.78 liters in a US gallon, so 72/3.78, or about 19 gallons in 72 liters.

19/65 = about 29% water change

of course, that doesn't account for water displaced by gravel and decor.

 

[Truck]

i was doing it in my head

 

[Duck1976]

You could also have worked it out by measuring the level of the water before you started taking it out and the level after.

TBH 25% should have seemed pretty obvious by just looking at it.

 

[Just_Another_One]

You could also have worked it out by measuring the level of the water before you started taking it out and the level after.

TBH 25% should have seemed pretty obvious by just looking at it.

yea 25% would look pretty obvious eh... sometimes its just nice to have exact number especially in this hobby.


Thanks to everyone else for the simple yet helpful help.