Big fan of this stuff:
http://www.bigalsonline.com/Fish_Filter ... 01_82.html
It's denser than the blue sponge material that usually sells with new wet-dry filters, and strains fine particles well. Holds up to squeezing out, not too expensive. Worthwhile IMHO to get this kind of stuff--can last for years, will protect your pump, etc.
Here's another site for informational purposes, or for bigger sheets (such as for a drip tray):
http://www.swisstropicals.com/Poret%20F ... 0Foam.html
http://www.bigalsonline.com/Fish_Filter ... 01_82.html
It's denser than the blue sponge material that usually sells with new wet-dry filters, and strains fine particles well. Holds up to squeezing out, not too expensive. Worthwhile IMHO to get this kind of stuff--can last for years, will protect your pump, etc.
Here's another site for informational purposes, or for bigger sheets (such as for a drip tray):
http://www.swisstropicals.com/Poret%20F ... 0Foam.html
