Yes, decomposers are needed in all ecosystems including caves.
no decomposers live in a tagia
Not normally. They might shelter in the entrance - and this assumes there are any caves in the deer's area anyway!
Kangaroos do not live in caves. In bad weather, they may shelter under cliff overhangs or perhaps the entrances of caves, but they do not live in caves.
Yes, wolverines live in caves
Vampires don't live in caves.
They might shelter in cave entrances - if there are any caves in cheetah country, of course! They are not cave-dwelling animals as such.
Decomposers are microorganisms. They live in plant material in the fish tank,
Glow worms live in in caves they also live in rainforest but they mostly live in caves
Decomposers live (or grow) where they can find food or waste.
Giant pandas do not live in caves.
They don't live in any state. Mermaids aren't real.
No glow worms do not live in soil they live in caves[the roof of caves]