Newts don't specifically hide under rocks but they go under rocks whenever they want too. Rocks are in the water and on land and newts are totally aquatic and specifically aquatic so they can go under rocks when they feel like it.
No newts need to be able to get out of water. I would put gavel in the bottom and some rocks for them to climb on and hide under. Then have water an inch or two above the gravel not the rocks though
they hide under rocks so they can hide from predictor's like humans.
They like to hide under rocks and in damp places.
tarantulas hide under ground such in rocks and burrows
rocks and branches can be provided in captivity as hiding places in the wild some snakes may burrow and hide under sand, some say hide under rocks etc
they hide under rocks
for shelter
Yes they do.
they dont hide under roks to hide from predators they hide under roks because its cosy under there. they dont hide from predators they dance in front of them
Yes.
Some do others don't.
Under water newts eat worms.