I have a pretty new 5 gallon tank. It's planted so I planted all my plants and what not then moved over my established filter to help it cycle. Soon after I moved my ramshorns and mystery snail and some fry. Within a day my snails are acting odd. Usually they are cruising around all the time but now they are just staying in one spot and my mystery snail is closed up really tight. The fish are acting completely normal. I checked parameters and came back with 0 ammonia, 0 nitrite and 10 nitrate. The temperature is a constant 75 degrees just like their other tank. I put in an algae wafer and they haven't touched it, they usually go nuts for food. I did a water change but I'm at a loss.