Sefri, Angelfish and discus both require a "soft" water. that means the PH should be over 7 as 7 is neutral. 8.0 to 8.5 should be good. You can soften water by treating with PEAT during the filtration process. Some driftwood that has been thoroughly cleansed is also nice. Amazon swords are nice in this type of tank as well. I dont know if you will want to keep the angelfish and discus together, but you can keep neon tetras with both. Dont forget to do your cyclic water changes to keep the minerals from building up as water evaporates. let me know how it turns out. Good Luck.
Sefri, Angelfish and discus both require a "soft" water. that means the PH should be over 7 as 7 is neutral. 8.0 to 8.5 should be good. You can soften water by treating with PEAT during the filtration process. Some driftwood that has been thoroughly cleansed is also nice. Amazon swords are nice in this type of tank as well. I dont know if you will want to keep the angelfish and discus together, but you can keep neon tetras with both. Dont forget to do your cyclic water changes to keep the minerals from building up as water evaporates. let me know how it turns out. Good Luck.