I love the Manacapuru sclare. They will take a couple of weeks to settle in and once they are comfortable and their fins start healing up and growing they will be stunning. They do fine in a Ph of about 6.8 but you can accalmate to a higher Ph. They also like a more subdued lighting and they will show better. Some drift wood in the tank is a good idea and helps buffer the Ph. I have a group of WC Peruvians, Leopoldi and Rio Inridia Altums I feed NLS Thera +A they also will do well using freeze dried blood and black worms as a supplement if you like. Your fish look very good, good luck with them and post some pics in a few weeks so we can their progress.