If "false green terror" means gold saum, then I don't think it qualifies as a tank buster. However... I picked up a small one about a month ago that is now about 4-4.5" long. All this time it has been chased from the center of the tank by an albino t. sp. mixteco, and I've been wondering how long it was going to take that given that the mixteco was now a little smaller than the gt. Well, yesterday the mixteco wasn't out for food and I found it dead in a corner. I don't know for sure, but I suspect the gt got tired of being chased.