For instance, ghost shrimp will eat food that’s fallen to the bottom of the tank, limiting how much ammonia is produced through decomposition. Crayfish won’t hesitate to eat sick fish near the ...

10 in the peer-reviewed journal Papéis Avulsos de Zoologia. Trichocallia delicatula, or the beautiful hairy ghost shrimp, has “tubular, hair-like” growths on the pleopods, or fan-like ...