Ok, I'm setting up my nephew a little 10 gal. FW tank for his room. I have a penguin 125 filter for it. I was wondering though, I have had my 29 FW tank runnin' for almost 3 years now. Could I just float the bio wheel in the tank to seed it or would I have to actually run the filter on my tank? His tank is already runnin' with the filter, no fish yet, and I didnt put the bio wheel on. Or do I tie the bio wheel with fishin line and weigh it down so its fully under water? Thanks for any info on this.
Steve
Steve