Well folks, this is me being absolutely bummed.
Fed the tank(s) this morning, and immediately knew something was wrong when my Blue Spot Jawfish didn't come racing out for some food. A quick check of his favorite spots, and I don't see him. I checked the overflow and sump hoping like heck he'd made it in there, but nope. With dread, I looked behind the tank and found him on the carpet.
All reading on this fish warns you will need a tight fitting lid. If you look through this thread, you'll see that I built just that, it fit very well. That is, until I put water in the tank...
One thing I neglected to discuss with the builder on the tank design, was the height of the water in the display. Being new, I guess I didn't even realize that was a variable I needed to consider. Once I filled the tank and had the return pump running, the water level settled less than 3/4 from the rim. The builder recommended I drill a couple holes in the overflow, below the teeth but above the level of the return nozzle, to allow more flow into the box and lower the tank level. I did this, but by the time I had two 1/2 holes drilled, I felt I had been lucky not to crack the overflow box and was scared to drill any more. I called it good and started the tank.
Once I had it running in place in my living room and after I added the Jawfish, I started using the lid. It was soon clear that I didn't have enough room between the lid and the water level, because it would be completely soaked in water. My compromise was to flip the lid over so the mounting tabs rested on the rim and the frame of the lid was above the tabs, so just above the rim of the tank instead of just below and inside the rim.
This means that I have to manually align the lid when I set it on. I guess when I put it on last night after feeding, I didn't get it lined up perfectly, and it created just enough of a gap for him to find his way out. A word of warning to anyone considering a Blue Spot Jawfish, or any other jumpers, this gap was VERY small, if I showed it to you you would have a hard time believing a fish could jump out through it.
So, there went what had certainly become the favorite fish for both my wife and I. I dread telling her about it when she gets home today.
Not every day in this hobby is a good one.
Last picture of my little buddy, two days ago.