Greetings all, I am in the process of pre planning my 350 SA tank. I am a school/shoal type of guy and want to have a few largish schools of tetras. My pink tail is the upper story boss and my 4-line pim takes care of the floor. I am looking to get one to three large fish that will not eat the tetras or bully the others. I am looking at keyholes, threadfin acaras, snakeskin gouramis, or chocolate cichlids. what do you all suggest?