Filter thoughts here...

[brewmaster15]

best Filter is W/C W/C W/C W/C W/C W/C W/C W/C W/C AMEN!!!!!!

-al

[JeffreyRichard]

Al, as you know the function of a biofilter is to provide a bed for bacteria to feed off the nitrogen compounds in the water. And surface that is porous that water can flow through works. I prefer the cheapest possible approach ... 4x4x4 sponge cubes with an airlift inserted in the sponge. The airlift will draw water into the sponge, allowing the water to pass over the bacteria. You can build these for $2 apiece. Why spend $$$ for hydrosponges? Also, powerfilters are good, but again, the cost of the unit and the cost to run is high. Why not invest in a good air supply (blower) and you can run as many sponges as you want?

I only advocate sponges for hatcheries, as they arn't really very asteically pleasing.