Hello. I have a question about switching filters and haven't found the answer here yet. I actually just put a fresh cartridge in my tank 5 days ago. Then, when I went to the store to buy more replacement cartridges, I came home with a new filter instead. It's the Fluval C2. I plan to put it on my tank in about 3 weeks. So my question is: Should I put some of the Fluval media and nodes in my tank somehow to start building up the bacteria and how do you suggest I do that?
I did see advice to run 2 filters for a month when you are switching, but I really don't want to do -- mainly because of too much water flow for live plants and gouramis.