My sailfin is no trouble i've had him with malawi, tangs, oddballs, general community, angels and discus no problems. ive had it 8 years and if anything the rays will go first before the plec but yeah they have been in the same tank for a couple of days now and they are fine and haven't even showed any interest in each other.
i spoke to richard AKA aquaman45 and he said that if i was going to have any problems i would have known by now and he is regarded as a very knowledgeable man when it comes to rays and he sold me this pair
i bought a shoal of 6 leopard danios today i know they will more than likely get eaten when my rays get larger but they seem ok for now
im not really a fan of geophagus to be honest and the same goes for silver dollars and tin foils
i spoke to richard AKA aquaman45 and he said that if i was going to have any problems i would have known by now and he is regarded as a very knowledgeable man when it comes to rays and he sold me this pair