gentle lemur 15 May 2020 It's a tiger perch, Datnioides; probably D. pulcher, the Siamese tiger perch.
Chlidonias 15 May 2020 That's a Tigerfish Datnioides - I think the ones at River Safari are D. microlepis?
Chlidonias 15 May 2020 (We posted at the same time - however it has too many stripes for D. pulcher).