🐢 Turtles need Water, so make sure there's lots of it! Make matches with pieces already in Water or use power-ups or boosters to spread it across the field. Each Turtle you cover in Water brings you closer to beating the level.
Don’t forget that Spinning Tops launched from cells with Water on them will spread it to the target cells. The Hammer, on the other hand, isn't much help when it's used on cells with Water unless you just want to see a splash or replace a piece with the piece directly above it.