Need Help Starting a Brackish

[The_Desacrator]

I have a 37g (populated by a baby pleco, 2 ryukin goldies, and 3 cory cats) that I want to convert to a brackish. I plan on trading in most of the current stock to my LFS. Can any of the current stock survive in brackish water? ANy one have tips or links on converting my tank?

 

[bettaowner]

None of those fish can survive in brackish water. Since the tank is pretty small, I'd look into mollies and bumblebee gobies

 

[The_Desacrator]

Any tips on converting to brackish? Is it as easy as changing the substrate and adding salt? I how do I add salt to the tank and how much salt per gallon? Is salt for saltwater tanks adequate for brackish? I planned on getting a puffer and an eel plus possibly some mollies. Any suggestions for plants? Do the filters I have that are already cycled sufficient for brackish or do I have to restart the whole process?