500l is approximate 130g. Zeobak recommend 1 drop per 25g 2x a week. So 130/25=5.4x2=10.8 drops per week.ok great
without the zeovit media ? or with it ?
my tank is 500L
ill do 5 drop every day for zoeback
and 5 drop spong power day after day
is that good?
So 2 drops per day m-f is good.