Altum wrote,
I'm not good with
fishless cycles, but I'm sure someone can tell you how much ordinary
ammonia to add to finish maturing your filter. Personally......

Fishless cycle is the only way I would do a cycle - no fish to harm or
kill, a *lot* less work (no water changes), and a *lot* faster (10 to
14 days instead of 4 to 8 weeks). 5 to 6 drops per gal. of pure
ammonia is around 5ppm, which would be enough ammonia for a full tank
of fish. The ammonia only needs to be put into the tank _one_ time at
5ppm. Daily 'feeding' of ammonia may lead to what is called a 'never
ending cycle'. If the filter was seeded with squeezings from an
established filter, nitrites should show up around the 7th or 8th day
and drop to 0 somewhere between the 10th and 14th day. NitrAtes will be
quite high at this point and a 50 to 70% water change is needed to
bring the levels down enough for fish. If wanted, the *full* fish load
can be put into the tank at this time. If you are going to wait a
day/week, before adding fish, one or two drops of pure ammonia needs to
be added to the tank each day to 'feed' the now established bacteria
colony untill the fish are added............. Frank