synodontis guppy amano

Hey, i put some new fish in my 25g tank today. Tank had only a full grown synodontis eupterus.   I added today 3 guppies (one male two females), a mystery snail and an amano shrimp (those 2 for eating algae).   The amano shrimp walked around a bit and when synodontis came close to her she went...