Coral Feeder Waste Cleaner for Fish Tank Multifunction Dropper Pipette Mini water changer water change tube drip tube This tool is suitable for pumping and changing water in mini office tanks and for treating fish diseases in larger tanks. It accurately and practically administers liquid fish medication. The maximum water absorption capacity is 30ml. The scale is divided into four grades: 10ml, 15ml, 20ml, and 30ml. The suction device is 28cm long. The water pipe is 20cm long. The handle is 8cm long. It's suitable for feeding red bugs, daphnia, and brine shrimp, as well as removing debris and leftover food from the tank. The PVC material of the dropper is durable. It can also be used for measuring and administering water quality regulators, nitrifying bacteria, aquatic liquid fertilizer, and other liquids. Features: * Removes debris and uneaten food from the bottom of mini fish tanks. Functions as a water changer for mini fish tanks. * Ideal for thawing and feeding frozen foods such as shrimp, red worms, and daphnia, as well as live or small-particle liquid feed. * Adds liquid additives to the fish tank and serves as a measuring tool. * Approximately 28.5cm long with a capacity of about 30ml. Instructions: 1. Clean this product before use. 2. Ensure the glue head and tube are securely connected before use. 3. Adjust the suction strength of the pipette to control the amount of water drawn. Package includes 2 water changers. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.