Hi, this is Jessica and I'm house-sitting for Matt, but have no clue about aquariums. I checked underneath his massive aquarium after I fed the fish and noticed some water where it shouldn't be. There's this large cylindrical pump thing that swirls the water around very quickly then spits some out into this small plastic container. When he was showing me how everything worked together, he said that the water should just trickle out of the tube and eventually fill the container which I would simply empty out. When I looked under the aquarium, the container was over-flowing. I dumped it out, but it filled pretty much immediately and continued to do so for about 20 minutes. Now it's slowed and since I've been writing this it's only about 1/8 full of water. Should I be worried? Is this normal? Please assist.