Today I removed my co2 line tubing because i wanted to keep the little check valve for future use. Well, I got the tubing off, and took away the check valve. I went back into the living room and heard trickling. I should have suspected, but Isaw the filter running well and figured it was a quirk.
Later, I was about to go out when I made another stop in the living room, I noticed 4 inches of water lost from the tank, and a pool forming under it. Well, I panicked and started feeling under the aquarium for a crack. What a rush of adrenalin.... Then I saw the co2 line hanging at the back, slowly siphoning the water out. What a rush of relief, but I still had about 10 or more gallons of water to clean up. It took 2 sheets a towel and a mop!
Lesson learned!