Do you have at 1 lbs per gal
? Even so that would be the bare minimum IMO
with a reasonable fish load. Skimming helps keep excess DOC
down as well.
Using base/lr rock rubble
(or larger pieces broken up) instead of bio-balls would be more beneficial for denitrification.
Not that bio-balls couldnâ€™t be used to supplement the lr
but either way the use of a pre-filter is a necessity to keep waste off of them and rinsing the pre-filter every couple of days is important as well.
If adding lr
/base rock at a later date to get your tank up to 1.5+ lbs per gal
and you still want to use the balls make sure you remove only about 20% of the bio-balls every two weeks to keep your levels from spiking. If you use base/lr
rubble you will never have to remove the rock.
P.S. The 1.5 lbs per gal
doesnâ€™t have to be all in the main