Check the listing for details. Python 25NS 25 ft. Aquarium Maintenance System. Condition: New. Listed at 49.99 USD. The Python 25NS 25 ft. Aquarium Maintenance System is a reliable and efficient tool designed for maintaining cleanliness and clarity in aquariums. With the trusted brand of Python and a 25 ft. size, this system offers convenience and effectiveness in keeping your fish tank sparkling clean. The money-back guarantee ensures you can trust in the quality and performance of this aquarium maintenance system.