I have a 150 gal paludarium with a turtle, chinese water dragon and a few guppies. i have been really wanting to make my water brackish so i can house cooler fish. is there any way i can house my turtle and chinese water dragon with the brackish water. could i have a small area of freshwater that the turtle and lizard could wash off in or would this be a bad idea. i was also thinking about maybe making the water a little salty but not quite brackish because i know that most brackish water fish can live in freshwater. please let me know if this is a good idea or not. Thanks