I'm gonna try. I had read sprkplug's mention of it last month, and it seemed like something worth trying. I've only stocked CNBG 3 times in 14 years, so I really don't know how to accurately age my fish, and get them back in the water with no lingering effects. I'm very open to other suggestions though.
I've got nice CNBG, but I'm just not sure if they're lingering around, or still actively growing and younger.