New Tank-How To Know How Much Water Does It Really Have ?

[427HISS]

Starting a new tank, especially with say,...75g (+) with rock, sand, sump, skimmer, filters, reactors etc,
how can you know the real amount of water that's in the entire system ?

If you add any chemicals that require pretty close to total amount gallons, you can be a little off, to a big amount. So, I'd like to know how you assess your gallons of water.

 

[Fish E]

This will help with the rock and sand volume.

http://www.garf.org/calculators/TankVolumeCalculator.asp

 

[427HISS]

I just guessed my sand and rock amount and my 125g tank and came up with these results. Not including other equipment & accessories...


WEBSITE-

Select your tank from the list OR Enter the dimensions in the form below.
Height inches
Width inches
Length inches

Or (which I chose)

Enter the information below

Depth of Sand bed- 3"
Live Rock weight-140lb.
Tank Size gallons- 125

Calculated Tank Water Volume- 94 gallons.

This calculator bases the live rock volume at 7.48 gallons per 85 lbs of rock.

 

[Dj City]

Interesting

 

[427HISS]

It sure is.

Now, all the other filtration can be fairly easy to figure easy to do, buy using measured amounts of water like a gallon to a 5 gallon bucket, then pour it into your sump, skimmer, a reactor, refugium, etc....

Thanks Fish E

 

[ca1ore]

The first thing to do is calculate water volume based on internal rather than external dimensions. That’s likely to be a bigger difference than trying to estimate displacement.