Both look male, def not the same size, I'd guess the top is maybe 4" while the bottom looks like a tank. Both look nice, it's hard to say cuz they are in different tank setups, but I'd say top will b the more colorful of the 2 some day
Males will get to about 12 inches females about 8.... I like males alot more.. Longer fins and alot more color than females also females have little to no irodesent green on their jaw while males do
120g. I like the top one too. Very happy to find one. He also has a male Texas for sale that I want to have a serious look at. The green terror was the fish I bought the big tank for. I had one that turned out to be a female and returned her, and have a very hard time sexing them.