I purchased some marine olive nerites yesterday that I slow dripped to get it acclimated to fresh water. Unfortunately, it has been lying dormant the last time I checked this morning. So if they are not moving by tonight, I'm going to start to worry that they might not survive the water condition change. This got me thinking, anyone setup El-natural brackish water. If it's low cost, I might consider turning my 5 gallon into a olive nerites breeding tank. I have yet to find anyone able to breed it in brackish water. But if all I need is a hydrometer, marine salt, and crushed corrals to setup a brackish aquarium, it might be fun to try. I am thinking of using just air stone and power head for water movement since I don't have any more spare filters. Any suggestion?