I ordered two Jack dempseys from liveaquaria and got them in yesterday and they are only an inch long. I have them in a 5 gallon tank right now in quarantine and to grow them out to add to my aquarium. Both of them have been staying behind the HOB filter and haven’t swam much at all around the tank. I’m about to do a 50% water change because I don’t think the tank is fully cycled. I have a heater set at 78 degrees. I’m just wondering if this is normal for them to hide behind the filter all the time?