Can anyone predict when the bonus round lands?
Deciding how much to stake starts with one fact: nobody knows in advance how often the bonus round comes. Every spin is random, so the result of one session is random too, whatever the RTP. A high RTP describes an average over a very long run, not your next visit. Set a budget before you sign in, and treat the game as entertainment.
Checking the RTP means reading the game rules, because only those rules show which RTP version Pelican Casino runs for this slot. The versions differ slightly, so an RTP quoted elsewhere is not always the one in play. Read the rules once before your first bet, and keep them to hand.
Looking at the top prize means reading it as a ceiling, not a target. The maximum win of Big Bass Splash 1000 is the most a single bet can return, and players reach it very rarely. Nothing shows when that moment will come, so judge the game by how much fun you have at your chosen bet.