No, fish can not sit out in the sun and gain energy, sorry
Depends on the fish and the habitat. I believe that they can be secondary consumers and up. I dont think they can be primary consumers, because these are mostly autotrophic, and fish (according to what I know) are heterotrophic.
The King Angelfish "Holacanthus passer" is a carnivorous fish of the tropical reefs. No it is not autotrophic.
autotrophic
some are autotrophic, some are heterotrophic some are autotrophic, some are heterotrophic some are autotrophic, some are heterotrophic some are autotrophic, some are heterotrophic
It is a carnivorous autotrophic.
it is autotrophic nutrition
Are called primary consumers, such as grasshoppers, birds (when they eat seeds) and fish who eat algae.
holozoic nutrition
The cyanobacteria are autotrophic through the process of photosynthesis. There are other bacteria that are autotrophic through the process of chemosynthesis.
some fungi are autotrophic while some are'nt.
Volvox is autotrophic, as it can perform photosynthesis to produce its own food using sunlight, carbon dioxide, and water.
Kelp is autotrophic, because it makes it food from sunlight.