I got your texts Nadia, sorry I haven't replied yet! I work everyday, then classes or meetings 5 nights, and volunteer on Saturdays, ugh! I need to slow down, not enough time for fun.
Potters Angels are not considered totally reef-safe, I'd avoid. I have only pretty basic hardy stuff, you can try: Ocellaris/Percula Clown pair, Coral Beauty, Flame Angel (some can get nippy or aggressive eventually though, incl. with other dwarf Angels), Royal Gramma, three Chromis, OrangeStripe (Randall's?) Goby. I've learned other hardy basic fish include: Tangs (vegetarian food needed), Gobies, Blennies, Cardinals. My Firefish Goby got occasionally nipped by my Raccoon, but seemed to be doing fine, then dead one day. I feel horrible for not isolating them sooner. They're jumpers too, gotta keep some eggcrate over your top. For Wrasses, do your research on each type, which are reef-safe, which can go with other wrasses, etc.
There are a ton of threads about becoming successful with Dragonettes/Mandarins. Just takes patience, luck, and a steady pod population. You also can find good Youtube vids on tricks to "train" them to eat non-live foods, pellets, etc. Worth a try in a tank with other non-feisty fast-eating fish. Otherwise they can get outcompeted for food.
Other Clowns (Maroon/Skunk/Tomato/etc.) can be/become aggressive so be wary. Some Basslets/Dotties/Anthias you gotta probably avoid, can be or become very aggressive/territorial. Do your research on each choice you might be looking at. Hit me up on specifics and I can help you find the info pretty quick. Butterflies can be intermed. level care with food requirements. Hawkfish are cute and have great personality, but can eat some crabs/inverts. My Raccoon Butterfly is great and healthy, but started continuously nipping at my RBTA's bases, so I put him in an isolation chamber inside the tank until I can setup my 29g Clown/Nem tank.
Side-note, just with my experience, might wanna avoid a Copperband Butterfly. Other people have had success but not me. They are notoriously difficult to keep alive for lengths of time, and get to eat properly. I got one from Elite and he lasted two days. My water quality is great, acclimated slowly, as are all my other fish, shrimp, Torch, Nems, & Toadstool, Xenia, all happy & healthy for months, wide variety of foods, lots of hiding places. Not sure why the CBB died. Hope no one was picking on him, dunno...
