
WELCOME TO FISHLORE!
A Brackish tank is a tank with water
salinity somewhere between freshwater and saltwater. There isn't a huge (compared to freshwater or saltwater) choice of fish - some of the main ones being mollys, brackish puffers, brackish gobys and archerfish.
I'd suggest you try a peaceful community tank. Go to your
LFS (Local fish store) without money (Don't be tempted to buy!) and see what fish you like the look of. Write down their names on paper whilst you are there (latin names might help, as some LFS's sell fish under an odd common name) and post them here, and we'll see what you could do with the fish you like. And, whilst you are there, don't listen you anything the LFS people tell you. They are often... 'Untrained' in fish care to put it simply. (Or... 'Highly untrained'!)
And, whilst I'm here, I guess I could reccomend some fish. Check out Tetras, Guppys, Platys, Swordtails, Mollys (they can be kept in freshwater as well as brackish), Danios, Rasboras, Bristlenose plecos, Khuli loaches and Corys. You might find this link useful:
http://www.aquahobby.com/e_freshwate...arium_fish.php
And, don't forget the
nitrogen cycle:
It seems a lot to take in at first, but after a while it becomes simpler as you get to know the different aspects of fishkeeping. But, you have us to help - if you have a question just ask me. Oh, and you might want to check out the 'Enyclopedia aquatica' link in my sig - it's pretty self explanatory once you've seen one of the posts, and you might find it useful.
Good Luck!