So I had my two clowns and my cardinal in QT medicating them for the last two days. My wife gets out of bed and says "where's the other clown?" for the life of me I can't find him! The QT is a 15g fully enclosed. The only opening is at the bio wheel spillway but it's so narrow that I can't see how anything could get out! I checked the floor, everywhere! Tank is bare bottom with only two PVC
elbows for hiding. He was my first fish. I'm so bummed!!