Nice color! I have 2 of them since 5" size there now both around 15-18". I believe I have a pair male and female. I raised them in a 300g but had to move them to a 100g as they were getting to aggressive toward there tank mates.Here's a pick of my 2 little guys. They are in a 360 gallon with another 17" RTGG , XB arowana, 2 BDL rays and a school of loaches and misc plecos.
Stunning fish tanks for the upload, tank looks kind off cramped, it's an odd dimension, any other info?heres a video of my GG lives in a 120 gallon which is 24 inches wide. Setup in my bedroom w/led lighting.
http://www.youtube.com/watch?v=YJAGxovgeYc