thailand

Bought this at a market in Bangkok. Assumed it was Fungia but its attached to the frag plug with about a cm tall trunk. This surprised me as I had thought Fungia are free-roaming. It is about 4cm wide. Could it be a juvenile stage Fungia? Also, please ignore the bubble algae. Am working out a...

Anyone identify this fish? Reef fish near Koh Samui, Thailand Some type of Grouper?