I've been using these fish as dithers for my cichlids.
I just pulled my Giant Gourami's out of the pond. There are a total of five regular and one albino. When I got them they were cute little guys at 1":
Here they are at 4""
I have four of them in a 300 gallon tank. The largest is 20"...the smallest 16". They are very shy right now since they've been in the pond for two years. Not used to people staring back in at them. More to come when they settle down. You can see a "piece" of all four in this photo.
...and some more. Here's the largest of the five.
The back end of a bunch of G's
The albino Giant G. at 14"
A long shot...you can see how I am lighting the photo for the shots.