the common type green terrors are also called gold saums, the new one you've got is a silver saum. The only difference is the trim color, as far as I know.
From what I understand it is a normal GT, but there is a more uncommon color variant where the orange on the tail is actually white. So yes, it is a GT as it does not look like a Blue Acara, which is the other species commonly confused with the GT.
thats a silver saum . green terror could be gold saum , silver saum ,or aequidens rivulatus , which is the "true green terror" . gold saum is the most common .