Sea cucumber habitat?

so first is just floating around and then finds a place it like so it goes into landing mode and lives there for a long long time. The End

a sea cucumbers habitats are usually found around the reefs of tropical water and on the floor of the sea..

Not understanding why "what else" is in the sentence, but sea cucumbers are algal eaters, taking in bottom sand, silt and pebbles, digesting the algal matter on them and pooping back out the sand,...

whoever wrote that last answer is terrible . They live on the sandy bottoms of reef .

The ocean or in a body of salt water