WARNING: "TERAPUMP DIRECT" is NEVER related to "TERA PUMP". They are a CHINESE Seller who sell countefeit pump. Brand New Packaging to combat counterfeit sellers! This is the ORIGINAL Aquarium Cleaner by TERAPUMP. Packaging now includes model number and Brand! Don't be fooled by Blank Generic Products. Two Types of Nozzles: Shorter Nozzle is for drainage & The Longer Nozzle is for cleaning fish leftover food, droppings and fine gravel / Takes the Waste out while Replacing the Water; Will not Hurt any Aquarium Life when in use Patented Unique Pump Filter Allows dirt and Sand to be Discharged along with water Hand Pump to Initiate the Siphon to Start Transferring Liquid from One Receptacle to Another