In article w35fb.663532$YN5.511551@sccrnsc01, Steve
writes
Thanks for the info. I did plan on doing a 50% water change. Should
that
be enough?

There's actually no reason why you can't do a 100% water change if you
want. It's not totally necessary, but fishless cycling often leads to
very high levels of ammonia and nitrite in the water, so the more you
change the better.

You need to measure the levels in the water and see how much a 50%
change would dilute them. If that's sufficient, then OK. It depends on
how much seed you put in in the first place.

Bear in mind that only a very small percentage of the bacteria live in
the water, so you won't do any harm by changing more and you may save
your fish from a nasty death.

HTH

--
Alan Silver