very good value for money and quick delivery

I have 2 goldfish and when I'm away I wanted a programmable food dispenser. He is fine. It is silent, the volume setting of food is by notches acting on a trapdoor. It has up to 4 distribution day which is a lot for my use. 2. I used to adjust the food plastic jar is filled and starts the cycle manually above a plate by adjusting to find the prèt debit the amount they want to give. Personally the setting was rather between two given the small amount to give and I chose the smallest putting two periods.
fixing is done by a gripper system (as a vise) which is screwed on the glass. by cons it does not work with a lid, because the fixing is done on the vertical wall of the aquarium.
the only criticism is that it is highly visible and unsightly.