A human-bred aquarium fish prized for its bright colour and head hump has escaped into a Philippines crater lake, where scientists fear it may threaten native biodiversity

• Flowerhorn cichlids are aquarium fish prized for their bright-gold colour and prominent head humps.
• Flowerhorn cichlids, an artificial hybrid species created by crossbreeding various cichlid varieties for the ornamental pet trade, are believed to have entered Lake Sampaloc after escaping from nearby breeding fa