So I've just got a 55gal and I want a brackish set up but I'm not sure what to get. I've had a brackish tank once before and really enjoyed it. I am drawn to so many brackish species that I just don't know what get. The tank will be in my living room so I want something attractive. I keep reading about different fish but read so much conflicting information. I'd really like a puffer but I've read many like live foods and this is a problem as our pet shop is 30minutes away. Plus I always think of species tanks as well, sort of boring. Any suggestions?
id say first think if you want plants, if you do, then your doing 1.005sg and that narrows down what fish you might want.
If not then go by size, you want decent sized ones or little guys?
some puffers can be community ones, the south american puffer(well is freshwater actually but can handle some salinity) and the figure 8 puffer(highly variable on the individual)
If you want a green spotted puffer, then you will need a species tank or larget tankmates who can handle him.
scats, monos, archers, freshwater moray eel, sleeper gobies like a marble goby, some of the larger spiney eel species, large cichlids like green texas cichlid (bloody beauty) or various tilapias or the mayan cichlid and green chromide, one species of needle fish, and some other guys get big.
Little guys there are almost too many to mention, do some online research. Compared to the availability of freshwater and salterwater species, brackish is very limited and thus should help you narrow down what your going to get.