2. is definitely freshwater flounder, Trinectes maculatus ; search up "freshwater flounder" and u get the exact picture.
It definitely resembles Garra cambodgiensis. Another synonym for them is Garra taeniata.
A lot people still can't differentiate Crossocheilus sp., Epalzeorhynchos kalopterum, Garra cambodgiensis and Gyrinocheilus aymonieri. I have attached a photo below to help. Doubling down on the first one being Garra cambodgiensis.It definitely resembles Garra cambodgiensis. Another synonym for them is Garra taeniata.
There are some other species that look similar, like Garra fasciacauda and Garra ceylonensis. Some specimens of Garra mullya also look alike.