265 actual gallons?

[Johnny bass07]

I just filled up my 265 gallon and I measured the amount of gallons it took to fill it up and it only took 195 gallons to fill it up. Am I missing something?

 

[User]

Yes.

you didn’t account for the volume 3/4” glass takes up (more than you think) plus your substrate and rocks

my 325 gallon system runs right around 260 real volume

 

[harley32907]

My 210 about 150

 

[Johnny bass07]

Yeah its bare bottom with nothing in the tank

 

[Johnny bass07]

So I lose about 70 gallons? Wow

 

[Ashish Patel]

Just take measurements of inside the glass dimensions and height of waterline and use the calculator on RC

 

[Johnny bass07]

I also have about 250 lbs of dry rock that I still have to put in

 

[Ashish Patel]

Id say a good rule of thumb is take 10-15% of the tank size for ball park of actual gallons

 

[Ashish Patel]

I just filled up my 265 gallon and I measured the amount of gallons it took to fill it up and it only took 195 gallons to fill it up. Am I missing something?

I figure you should have at least 210-230 gallons of actual water in the tank. Inside measurements will help with actual measurements
Use this calculator
http://reefcentral.com/index.php/tank-volume

 

[Johnny bass07]

I figure you should have at least 210-230 gallons of actual water in the tank. Inside measurements will help with actual measurements
Use this calculator
http://reefcentral.com/index.php/tank-volume

Thanks

 

[Johnny bass07]

It says 213. I'm short 18 gallons

 

[Johnny bass07]

That's with the pump off

 

[flampton]

It says 213. I'm short 18 gallons

I believe your count has to be wrong since if you measured correctly that will be amount of water in your tank

 

[Johnny bass07]

I would do fifteen gallons at a time and wrote it down after every 15 gallons. I guess I could have forgot to write one down