I'm in the same boat as you man. I just set up my 10 gallon nano about 5 weeks ago. Im back to basics on this. No heater, 1 koralia 1, 2 HOB filters and a 2 bulb PC light fixture. So far I have a bunch of zoas/palys, tyree war coral, favia, condy anem, duncan polyp, snails, hermits. I had a small inexpensive fish but im pretty sure either the condy ate it or it croaked and the hermits ate it because I have not seen it in about a week. Good luck to you and welcome back to the hobby.