i have a small snapping turtle and next feb. im getting a 240gallon glass tank for it. the size of the tank is more than enough for her as an adult. what do you guys around here think i should do for a filter? should i buy or build? i realy need it to be quiet as possible or maybe put it in the basement and plum it through the floor. i dont feed her in the tank due to cleaning. i just put her in a rubbermaid tub full of water. any advise would be great.