Ok i have been in the hobby of saltwater tanks and such for about 6 months now. Currently i have a 30 gal reef tank with a percula clown pair and there host anemone, and a 20 long with tomato clowns and there host anemone. Now i want a pair of pink skunks and i want to put either a bubble tip anemone in there with them or a long tentacle anemone. Now what size nano would i need, i was thinking that a 24g would be big enough, just put the anemone right in the middle and hope it stays there. But i don't really now how big nanos are and what would be best for space saving/energy saving, and have enough room for the anemone.