Both your fish and your dog in your avatar are beautiful!!!
I have always loved the columbians, I like you, began keeping them with oscars, but I could never grow them past 6 inches before they died, this was well before my MFK days, and I have now been educated as to why the low survival rate. I have since moved on to Frontosa and other African's, but I have an empty 90 gal just begging to be set up and filled with a group of juvie columbians!
In what time frame did you convert the tank from brackish to full salt?