erikmoseley
Aquarium Advice Addict
Hi I've had a 72 cycling w tetras for now about a week. Levels are good so far. Put some bottle "good bacteria" in today and want to put gravel from friends established tank in my bio wheel filter. Have extra media cartridge slot in there but question is can I just put the loose gravel in there to help the process or so I need to put it into a mesh bag? If so what do I use?