Originally Posted by Kevin34
What kind of issues? I have been told by many people that 3-4 inches is perfect for things like jawfish.
3-4 inches leads to problems in water quality because its too deep to be completly aerobic, and to shallow to be effectvly aanaerobic, so your sand critters dont maintain deep enough, and your anaerobic layer isnt effective so it turns into a time bomb of nutrients just building to overload.