15 tall coldwater tank

[toehead11183]

It will be unheated so 68 or so. I plan do put a few tadpole madtom catfish, fathead minnows and maybe a some banged pygmy sunfish

 

[TheWolfman]

One more vote for the White Cloud Mountain Minnows. They are great little fish with beautiful makings and can handle a range of temperatures. They go well with cherry shrimp and amino shrimp. Throw some Otto cats in there and you have a great little tank.