Hey everyone! I've been doing lots of research and list-making but can't make up my mind so I figured I'd crowd source it. I have a planted, well-established 40 breeder with 6 skunk corydoras, and a juvenile blue acara (the wild type, he's so awesome). The tank just feels like it's missing something and I can't decide between a group of larger tetras (diamond tetras?) or another more docile cichlid (keyholes?) to round out the tank. Any other suggestions are welcome too :) As the acara grows, it could very well turn out that he needs the space to himself which would be fine by me, but figured I'd see what other hobbyists thought. Photo of the tank attached (pardon the algae on the back glass).