how can i create my 40 gallon fw tank into a brackish tank? i have a fw moray eel, fw asian tiger lobster, 8 zebra danios, and lots of feeder ghost shrimp. would it be alright for all of my guys if i were to make my tank a brackish tank? PLEASE GIVE AS MUCH INFO AS POSSIBLE ON HOW TO MAKE MY TANK BRACKISH AND IF IT WOULD BE OKAY FOR ALL OF MY FISH!! THANKS oh, and ps. would there be anything special that i would need to change about my fw setup for a brackish tank? THANKS!