I still think Fishtank shouldn't be based off of an elimination model and should've been based off of a points system where the winner is the one who has gotten the most points through challenges. If you leave out early you lose all of the points you've gained throughout the season.
It's not like the eliminations have ever been fair and most of the fish leaving is due to them leaving of their own accord. Then again, the wiggers could also rig the amount of points a contestant wins so who knows if it'd really be better.