What is difference between osmoconformer and osmoregulator?

Answer 1

Osmoregulator have to use energy to gain or loss water, because their body fluids are different from their environment.

(osmoregulation is the process an organism uses to balance the fluids/water)

Osmoconformer, on the other hand is, are organisms that have body fluids that are the same as its environment.(They don't gain or loss water during osmosis. Therefor they don't have to worry about using energy to combine ammonia with carbon dioxide ---because they excrete ammonia)

Answer 2

Osmoconformers are organisms that maintain internal osmolarity similar to their environment, while osmoregulators actively control internal osmolarity regardless of external conditions. Osmoconformers do not expend energy to regulate internal osmolarity, whereas osmoregulators do.