Lay an egg, duplicate your fish or make your fish make a sound. Bind these to keys to add some new controls to your fish.
Makes your fish make a random noise (if it has any). A lot of fish don't have any sounds.
Instantly lay an egg, egg will hatch after some time and the fish that spawns will join your current group, allowing you to control it. Only certain fish will follow you in a group.
Duplicates your current fish and adds it to your current group, allowing you to control it. Only certain fish will follow you in a group.