Automatic Syringe Bottle 1EM BT Options:Automatic Syringe Bottle 1EM BT Do not use it inside Do not use it inside a house or near a house or on rainy days due to weak GPS signal Wardley Advanced Nutrition Perfect Protien Tropical Fish Flake Food is formulated to maximize protein utilization and reduce fish waste helping to keep water cleaner longer Features: Automatically self filling with bottle attachment Heavy Duty Bottle Cage for bottle protection (50ml & 100ml bottles only) Accurately delivers selected dose Easy V grip for high volume use Metal Luer Lock tip Removable barrel for cleaning Durable plastic design Amber colored barrel reduces UV sunlight exposure