The new Eden 901 fish feeder for aquariums was developed with an innovative system that protects the feed from moisture coming from the aquarium. The feed container in fact is sealed inside the fish feeder, and rotates out of the same with a rototraversing movement to dispense feed before returning to the rest position. The amount of food dispensed can be adjusted with great accuracy. The day dosage programming is easily set on a keyboard and LCD display. Every day you can set up to 4 meals with max. 3 doses each for a total of 12 doses in large aquariums with a notable number of fish. Running on batteries, there is also an optional transformer and mounting bracket that fits onto a 10 - 50 mm aquarium frame.