View Full Version : How much top-off for a 240 gallon?

08/30/2007, 10:15 PM
How much should I expect to add to my 8'x2' 240 gallon. I'm trying to plan a top-off resevoir.


08/30/2007, 10:26 PM
I have a 180 with a 2 x 4 footprint and I top off 30 gal / wk.

I do use fans on my sump and tank. I also have almost 1200 watts of lights.

08/30/2007, 10:26 PM
Ooops...I meant a 2 x 6 footprint! :D

08/30/2007, 10:38 PM
I used to have a 240 that I usually ran a fan for cooling on the sump. I lost 7gal/day with it.

Red Sea Purple Tang
08/31/2007, 12:47 AM
I use a 10g tank that remains 3/4 full at all times with a float switch to the RODI. It's the tank on the top over on the left. I would estimate 2-4g per day.