Hello all, I’ve recently just completed cycling a new 20 gallon tank. I’ve had a 5 gallon fluval for a few years with a male halfmoon betta and decided to add a new addition. After the cycle was complete, I added 3 serpae tetras and plan on adding 3 more after my tank adjusts to the first 3 for a total of 6. May consider adding a total of 8. My question is what would be a good centerpeice fish? Should I stop with the school of serpaes? I would like to add one more fish that does well on its own and won’t be an easy target for the serpaes. Any suggestions would be greatly appreciated.