FishAreFriendsNotFood10
Fish Herder
If there are bubbles coming out of it then its working lol... you should have a air pump, tubing and that blue airstone
cant u keep the decoration you ordered and the airstone? its totally upto you though 
i find it amusing watching my gouramis swimming through my bubble curtain created by the airstone. When the bubbles hit the surface it will create a gas exchange and cause oxygen to enter the water (exactly what your filter does when creating ripples on the the waters surface).
i find it amusing watching my gouramis swimming through my bubble curtain created by the airstone. When the bubbles hit the surface it will create a gas exchange and cause oxygen to enter the water (exactly what your filter does when creating ripples on the the waters surface).