Angler fish in high light levels vs. low light levels if the light in the habitat is increased, then the angler fish will have a (higher/lower) health rating.

If the light in the habitat of angler fish is increased then the angler fish will have a lower health rating.

Explanation:

Angler fish is a deep-sea predator which have a fishing rod-like structure present on its head. This structure extension of its spine which on its end constitutes many bioluminescent bacteria that is used to emit light in the dark environment of the deep sea.

Through this bioluminescence, the fish attracts its prey towards itself and when the prey reaches close enough it attacks on prey and consumes it. So dark environment is necessary for the fish to hunt and get its food by emitting light.

Therefore when the level of light is high then the bioluminescence will not work properly and then hunting of prey will be hard for the fish therefore, in that case, its health rating will decrease.