So the spot my clown goby usually hangs out at is now empty and I havent seen him for 2 weeks and doesn’t come out for food when I feed (he never did when I fed the tank even when I could find him). So could he be dead? My tank is a 25 gal and right now I have a clown, gramma and a banggai cardinal. Could I add another fish or would the tank be overstocked? I also run a nano skimmer and a carbon reactor.