Sponges can typical pump water equal to 4-5 times its own volume every minute. For a sponge about the size of a football, this equates to several thousand liters each day.
The original and one of the largest list of DIY reef aquarium project links you will find in one place. The large list of links is almost been totally added into the new format, with the number currently (12/01/2006) being 483.
If you have a link to suggest, then please submit it for consideration. Or if you find one that has expired, then please
me so that it can be fixed. You can also let me know what you think of the new format and if there are any improvements that can be made to the way the information is presented.
DIY Links 