While I wait on my tank to cycle, I have a few questions, and I'm looking into different combinations of fish. I have a 29 gallon aquarium. I am looking at archer fish, puffers (I know they're aggressive - is there a least aggressive kind?), freshwater flounders (soles), ropefish, and any other brackish fish that will work in a 29 gallon. Which of these fish could get along and live in a 29 gallon tank? And if you've been following my post about possible fish for a 29 gallon aquarium, should I go with a freshwater or brackish setup?