Indian casinos are not regulated like this so on top of the fact that slot machines have the worst odds of any gambling game in a casino, added to the less strict guidelines for Indian casinos, you're simply throwing your money away at a casino like this.
If you're not aware, state law requires casinos in Vegas and Atlantic City to have certain winning percentages on their slot machines with Vegas of course the most generous. First of all, if you plan on winning money in any casino in Florida, your chances are not that great.