The reasons for the molt failure of purple ground crab are:

1, gill filaments are attached by filamentous algae.

2, water quality regulation is not timely, too much residual bait in the pool. Purple ground crab, Rachy's imitation ground crab (scientific name: Gecarcoidealalandii) for the ground crab family of animals, distributed in the Philippines, Indonesia, the Indian Ocean islands, as well as China's Taiwan Island and the Xisha Islands, etc., the living environment for seawater.