A
sponge filter is enough but you can use the powerfilter too. You dont really want a lot of current so the sponge filter with an air stone is enough. But if you dont have that go ahead and use the powerfilter. The powerfilter can be helpful after you medicate and you need to run carbon to remove the medication.
Remember to test for ammonia and nitrIte twice a day and be prepared to do 50% WC to keep those levels at 0. This is important in a newly set up QT/Hospital tank as the
biological filtration (nitrifing bacteria) is not built up yet.
