to bio-pellet or not to bio-pellet

[Myka]

Your refugium probably won't help with nutrient export unless you modify it to just grow Chaeto. Adding more rock would help by creating more areas for denitrifying bacteria to help reduce nitrate by offgassing, but the difference would be minimal.

[saltyair]

myka thanks for the info.

my refugium has a huge ball of chaeto - it takes up 3/4 of the 20 gal refugium

Originally Posted by Myka

Your refugium probably won't help with nutrient export unless you modify it to just grow Chaeto. Adding more rock would help by creating more areas for denitrifying bacteria to help reduce nitrate by offgassing, but the difference would be minimal.