This is my set up after much thought on which tank I was going with.. I ended up with this.
Tapped into the wash room for drainage, water & eletric.
This holds my stash (30 eels plus) just fine with only water changes every third day and air. A fish basket fits perfect inside to cull my snakes. I leave a flat rock in the basket they seem to like it. I traced and cut two peices of plywood and cut a large hole in each, a 3/8" screen is between the plywood ...they don't get out. I drilled a small hole for an air tube. The drain valve allows saves alot of time
and a little weed ta make it homey