Ficklewinds
Aquarium Advice Apprentice
I'm currently running a SunSun 303b canister filter and a HOB Penn Plax 200. The Penn Plax is on its last leg, motor sounds rough, and I have a Fluval C4 to replace it with. Since I have the canister filter, if I just put in the C4 will my cycle crash? Or do I need to try and salvage some media from the old one? I'm not so sure I can since the media in the old one is the kind designed for that filter.