Translation of "Brittle" in French

Metals can become brittle at low temperatures.

Les métaux peuvent devenir fragiles à basse température.

She's thought, "Okay, brittle stars are stealing my food,"

elle se dit : "Ces étoiles me volent mon repas",

She's always gonna have this problem of brittle stars taking all her food."

Ces étoiles vont constamment chercher à lui voler sa nourriture."