I recently got a 40 gallon uniquarium with a built in wet dry filter. The only thing I'm missing is a water pump. I know where to get those but what I really need it the tube that attaches to the water pump and the tank were the water is supposed to come out. I really have no idea where to get one and none of the product reviews says anything about the tube or anything. Does anyone know where to get it? Or even a pump that comes with a tube? Please and thank you