I got a 24g Nano with a Percula Clown, Royal Grama, and a small damsel (which I am going to remove). There is also a ritteri anenome and a coral banded shrimp along with 12 turbo snails. I just order a second Clown. Hoping they will mate. I am also adding a sand sifting cucumber, and 5 assorted crabs for algea eating. I am thinking about adding a sponge and some shaving brush plants. Corals next on the horizon after about 4 months of balancing this crew.