Hi, I would like to know how many otos I should add to my tank (in quite a long time so there is enough algea) because I read that a lot of people struggle to feed them because they are too shy to go eat food and starve to death when there is no more algea. How many should I get in a 50 gallon so that I can feed them and are less shy? I also read that they like to be with corydoras because in the wild they school with them.. Would having corydoras in the tank encourage them to go eat even if I have a smaller group of them?