Definitely need a different photo because of the color saturation, the picture seems excessively green, so the coloration tends to be difficult to identify. However, considering that picture, I would guess a male. The intense coloration of the fish and the broadness of orangish-red on the tail are the indicators that suggested my opinion. Also just so you are more aware, male Green Terrors do not always develop the nuchal hump. All my Green Terrors I have owned have not had the nuchal hump; the forehead became broadened but never displayed the nuchal hump. In other words, although some Green Terrors develop the nuchal hump, many Green Terrors do not tend to display the nuchal hump. The nuchal hump tends to be exaggerated in my experiences, although it would be cool to finally possess one that did possess this trait! I hope this helps! If you are able to send another picture, I would enjoy you sharing more pictures!
Thank you so much, that was very informative. I was confused because of the tail band and bright coloring, but a lack of the nuchal hump. I think the green is due to the amount of plants in the picture and the algae on the glass. I clean it a few times a month because I kind of like how it looks, but it definitely doesn't help in pictures.
Here are a few more pictures
Thanks again. I was planning on cleaning the front glass tomorrow so maybe I will take some more pics.