Thanks. I usually do an update every 6 months give or take
Got the keyhole tank from a fellow MFKer a while back. It is a D.A.S. tank (Dutch Aquarium Systems). They usually set up pet stores so this tank is actually a commercial tank though they do sell tanks for the home aquaria. Though these tanks come with filtration systems, this one did not have one so I took the FX5s from some other tanks I had going.
The waterfall idea came from a pond set up that I saw which used it. My tank is somewhat like a pond and I wanted to have that look so I set it up as such...
As far as feeding, my fish will eat until they can't so I just alternate foods and skip a day sometimes and they're always fine.
My set up is a little different now but here is some pics when I first set up the tank...