Hi I am changing my marina style 60l tank to tropical as I currently have 4 shubunkins in it and no live plants I have a fake one & some rocks and a cave statue thing and a boat, my filter is a marina s15 and the tank has been set up for over a month now and the shubunkins are still alive and going in to a pond soon, so I was wondering as I only want neon tetras in the tank as to wether I need any specific stuff to keep them our would my current set up be fine and how many neon tetras could I safely house in my tank? as am gonna have the temprature at 24 degrees celcius. thanks