29g Stocking Question
Hello everyone! Newbie here~ I've been in the saltwater hobby about three months now. Having a saltwater aquarium at home was my dad's lifelong dream (And I've wanted one for a while as well!), so he and I set up a 29-gallon FOLWR tank at the beginning of November. Since then, we've been gradually adding livestock. The tank now contains a firefish, percula clown, yellow watchman goby, skunk cleaner shrimp, and a handful of CUC critters.
My question is: would it be wise to add a fourth fish, or is the tank at maximum stocking level?
The water parameters are kept in check pretty well, but I don't want to go overboard. On a related note, the tank does not have a protein skimmer. I've read that it's not necessary for this sort of setup, but would we benefit from getting one?