The pet store that I prefer is a bit further from me so I don't make it down there for just refills and stuff. But one of the guys that works there has like 5 RES and has told me the rings are needed.
What say you?
Thanx..........Tina

octpusgirl8 wrote:I, personally, am a big believer in biological filtration. I use carbon, but i use more of my filter space for mechanical and biological filtration. I don't even change my carbon that often and my water quality is great. Plus, using less carbon and more rings means spending less money on filter maintenance, which is always nice


Cramer wrote:Never listen to pet store personel. Just smile and back away...


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