Thanks, jpap.
Yeah, this tank is constantly changing so I have never really gotten bored with it. I'll eventually trim down the Hydrocotyle and probably put most of the clippings in my 50g.
The Topminnows have already surpassed their life expectancy of 2 yrs, so they probably don't have much longer to live. When they do expire, I'll probably replace them with a school of Rasboras and shrimps and go ahead and rescape the tank again with some new plants.
I may leave the sunfish in there or move it to the 50g.