i started werid also well not with mixing goldfish but i took risks here and ther but really the only proublem of fish not getting along is when i had a silver dollar and dwarf grourami togehter and the gourami won the fight other wise my fish always got along
Sounds like you are really enjoying your hobby and having a lot of fun! Be a little cautious not to overstock your tank though, since the angel will grow quite big. So far you seem to have a very good balance in the community, and I love the layout, it's quite unique!
