Carbon is a waste of time unless its for a specific reason like removing tannis or meds. Yes I would recommend you replace the carbon with cermic rings.
Carbon is a waste of time unless its for a specific reason like removing tannis or meds. Yes I would recommend you replace the carbon with cermic rings.
You forgot to mention that carbon removes the nasty fish smell from the water. For new setup and newbies, using carbon would aid in cycling a tank. Other than these benefits, using carbon in filters is not an absolute necessity.