| Re: Adding a canister filter to the RSM setup I just discovered this separate thread regarding the same topic I asked in the main RSM thread. Anyway, just wanted to add my decision regarding my own Fluval 205. I am going to leave it in place but without the foam pads that come with the filter. I am going to use the canister for chemical filtration only in the form of premium activated carbon and Chemi-Pure Elite plus a couple of small mechanical filtration pads before and after the chemical media. I cut these pads from one of those large blue filter pad sheets that you can buy in a bag. It's cheaper this way. I plan on replacing the two pads every 10 days and rinsing the chemical media in the canister water. Then, I'll pour out the dirty water and replace it with fresh saltwater. This equates to an extra, albeit tiny, water change while servicing the Fluval 205. I'll let y'all know if this solves the nitrate problem. I have been measuring about 2.5 PPM with some Cyanobacteria and my goal is ZERO nitrates. |