Know the limits before your first spin
Reels stop on a new random result with every spin, so nobody can predict when three bass fish scatters will land and start the free spins. How often the bonus round comes is not known in advance. The result of one session is random whatever the RTP.
The 3x3 grid lands new symbols on every spin, but the RTP version behind those symbols appears only in the game rules. Open them before you play to see which version is running. Versions can carry different RTP figures, so that check matters.
Spins can climb toward 5,000 times the bet, which is A$25,000 at the A$5 example bet. That ceiling is reached very rarely, so read it as a limit, not as a likely result for any session.