Mushroom potato and shark both heal 20, but a mushroom potato weighs 0.5 kg, to a shark's 0.6 kg.
A manta ray heals 22, to a sea turtle's 21. It weighs 0.4 kg, the turtle weighs 0.35 kg.
Remove either the mushroom potato or the shark from the potential rewards, as there is no reason to choose a shark.
As for the manta ray/sea turtle, there technically is a reason to take the turtle, but I doubt anyone will ever pick it.
21-Jun-2018 16:17:42