Im new to the forums, I have been lurking a lot and researching as much as I can. But I can't really get the clear answers that I seek... So I decided to ask. I am trying to get a planted tank set up for my boy, it's a 10 gallon. I am just wondering what you guys think when it comes to filters. I plan on having my betta, and a small school of 6 tetras. What kind of filter would you guys recommend? I wanted to use a sponge, but not sure if its the best option because of the tetras. Also what do you guys think when it comes to substrate?