Hi there! I'm very new to this forum and have a question. I have a 5 gallon Mini Bow aquarium that is complete with 5 neon tetras, a lot of tiny snails, natural gravel, 3 plastic plants, and a small bridge. My current filter is the Whisper filter that came with the aquarium. This filter works fine, however, because it sits on the inside of the tank it takes up a lot of room. The cartidges are kind of expensive, but the most annoying thing is that the filter vibrates against the inside of the tank and against the hood. I'll be attending college pretty soon and I'm sure my roomate won't appreciate that.
So, I'm looking for a new filter. Maybe one that hangs on the outside of the tank if thats possible and that can keep my tank even cleaner than the Whisper filter did. I'm looking for a small filter, for example, before I realized it was for a 3 gallon tank, I really liked the Red Sea Nano filter for its size. Also, I've heard people talking about how to make your own filter cartidge with different materials like sponges and carbon filter pads. Would that be possible?
Again, any help would be greatly appreciated. I'm a novice at all this. I found out about how to keep fish healthy just last year and these 5 neon tetras have been going strong with me for 2 years now.
Oh and I think I put this in the wrong spot! If anyone can move this thread, feel free to do so.