I found mushrooms to be a good starter coral. Zoos are cool too. There are some decent prices on single ricordia or mushroom polyps on this site if you ever place an order. It helps to buy some corals and lighten your fish load. You have quite a few options in a tank that size. Many people love a small group of green chromis. A flame or pygmy angel would also be a nice addition- but only one. Maybe a pair of clowns....... bi-color blennies are another favorite. Check out all the shrimp possibilites too. Wrasses are cool but tend to be jumpers as do some blennies and gobies. This is the fun part for you, take your time and read up before buying anything, then you will have no surprises or regrets. :joy: Good luck on making your decision!