Build a food chain of exactly 6 species that survives in the given location. A valid ecosystem satisfies all three rules:
Habitat: every species you pick must tolerate the location's depth and temperature.
Food: every animal must have prey one trophic level below it in your chain (producers eat nothing).
Energy: after feeding resolves, every species must still have calories provided above zero.
Feeding order: the animal with the highest calories-provided eats first, drawing its calories-needed from the richest available prey one level down. You have 35 minutes.
Location
Only species that tolerate BOTH conditions can survive here.
Species pool
Level shows what a species eats (one level below).