I have a 10g tank that is setup right now as freshwater and want to convert it to a brackish setup, but i really dont know where to start though. please help!!!
in a 10g brackish you can keep only bumble bee gobies, and some mollies, since all other brackish fish grow to around a foot. substrate could be anything you like..sand, small pebbles, or coral sand if you wish. then as decor you can put some large pebbles and a few plastic plants. if you find vine roots they would make the tank look like a mangrove swamp but maybe vine roots will be large for your tank.. specific gravity should be around 1.005 to 1.020. when i had my brackish tank i used to add 1tbsp of marine salt to 10 ,ltrs of water. fish did well with this setup.