I know that it's kind of a silly question, but I haven't found a solution yet. A regular toothbrush for my small 4.8g tank works super well for cleaning my plexiglass, given that it's nylon and I can control the pressure. However, the handle is way too short. Does anyone know of a long handle toothbrush or a way to extend the handle? I don't like displacing the water by shoving my hand in, haha.