DISCUSBOOK04, full with innovations and not only discus; also fascinating and unique discoveries - the very firsts worldwide... CONTENTS 3 EDITORIAL 6 RIO PURITE EXLORING THE "RICH COUNTRY" 33 DISCUS STUDIO TINNES 38 LORICARIIDAE - RIO META 58 SWORTPLANTS FOR DISCUS 64 BIOTOPE-AQUARIIUMS 72 PTEROPHYLLUM SUMMARY 92 SPECIAL EVENTS 98 LAGO UAUAÇU