the wild percs are more prone to brooklynella or marine velvet and ich and if either develops many times a secondary infection will result. they are beautiful fish but you need to be prepared before hand to treat the problems they likely have. you need a qt tank, an understanding of how to properly treat the above diseases and the medicine on hand. its best to let the lfs deal with these problems initially and watch the fish there if you can wait. most will show signs within a few days if you look closely. if its a good store they will be treating it and keep the fish separate from new arrivals but this is rare. it takes up retail space and adding new specomins to the tank prolongs the treatment time so most want to sell the fish as soon as possible. there are many tank raised varieties available which are hardier, adjust to new conditions better and have less likelyhood of diseases.