Got my bait tank finished tonight. The tank is from tractor supply 100 gallons using a pool pump for filter. I also added a air supply that can run 5 airstones.The bottom of the tank has an inch and a quarter threaded hole just attached a connector and a little piece of pipe to attach to pump. Drilled a hole in center front of tank attached hose and used a T and piped out the side and drilled 2 more holes on sides to support pipe and capped the ends. I drilled some holes in the pipe to circulate the water. Pretty basic set up hope it works to keep bait alive. Some pics attached.