Enter into the underwater world of Fish Evolution! This casual and addictive puzzle game invites you to merge colorful fish and watch them evolve into spectacular sea creatures. There are two kinds of gameplay, in a merge aquarium, you need to place shells and small fish to help you fight.You need to get the number of cannons, the number of minnows, and the position right to make sure the game is successful. Merge different fish species, unlock new kinds of fish, and solve fun puzzles. You are merging the same type of fish and evolving into a more advanced species of fish. Watch your fish grow and take on amazing new forms. Eat more fish to strengthen yourself. You can also get defensive items and avoid the killing of big fish. On a more difficult level, defeat the same level or lower level creatures to evolve. There are countless species of fish and evolutionary paths, you always discoveries. Try different ways to merge and watch your ocean paradise expand. Come to merge your fish and watch your underwater world flourish!