Hey welcome FNG I have not been on this site in awhile. Nice to see it come back to life (the DSLR Gallery). I have no idea what your fish is but just wanted to say welcome. Might be SA??? Perhaps somebody on that forum might know better.
I want to say Tilapia Buttikoferi, but will wait for an expert to confirm lol, might just be the glass angle but the mouth shape is slightly different looking...