lookin great!!! You will need a permanent cover as all your eels are suseptable to falling out as they explore. I've had my Big Oscillated bump the glass top hard on my tank, lifted it a good 4 inches. I now have 5lb lead bars I place on top of each side. I believe they are very curious and I was warned from the get go by the guy;s at my local LFS. Lookin forward to the end result!!!!