I'd go reef. I prefer smaller, more peaceful fish anyways, so the coral is just a bonus for me :lmao: If basslets, jawfish, wrasses, and blennies all suddenly made the unanimous decision to start munching coral, I'd have a FOWLR tank. Honestly though, the diversity of a true reef (with shrimp, crabs, urchins, clams, anemones etc.) is endlessly infatuating, finding some new life form in your tank on a daily basis is nothing short of amazing. A 90g FOWLR would also get stocked up fast, and your fish couldn't be too large, due to the size of the tank, which goes back to the fact that most small fish are reef safe anyways, so may as well throw in some cool corals. That being said, I *do* plan on setting up a large FOWLR tank one of these days, so that I can finally get my harlequin tusk, saddleback butterfly, and porcupine puffer, but I still need my reef alongside it :love2: Do whatever you feel will make you happy long term. Good luck :dance: