Hello everyone, I have a 20g long setup that has been established for quite some time now, which a fair amount of corals and rock work, I was wondering if it is possible to keep a small group of Allen’s/neon damsels together, no other fish besides those, do you think it would be ok aggression wise? I love damsels and would love to see a school of these guys as I’m to,d they are the most peaceful and best for keeping together.