My 3 eat all day. I just added 3 small hatchets today. After lites out I went to check on the tank and found 2 hiding and 1 flopping on the floor. I added it back to the tank and an angel went after it. Hes trying to eat them. Ive had some neon disappear before and Im sure they got eaten. Will I have better luck switching out The 3 lrg ones for small ones?