Wes sent me 4 in Aug 2015 too, so I think our fish are all from the same batch. Siniperca shuatsi. Two were tiny ~1". They ran out of energy to even feed after the shipping. One fed (offered small guppies) but died shortly thereafter too, maybe it was too exhausted to digest a super meal he had had.
Only the fourth, biggest survived. Learned to associate food with me and since then follows me like a puppy. Got him onto live frogs (caught in my yard) first, then he started taking frozen baitfish in Sept 2015. Grew quickly from the initial ~1.5" to ~4". Then stopped eating well, would only eat every 4th or 5th offering and a loss smaller portion. In part I think my water has been too soft, so I have been hardening it but yet to see an effect on this guy.
He appears stuck at ~5". Quite an achievement OP's is nearing 1'!