Nice looking lil gold saum! looks like a female gold saum to me too but it being so young its hard to get an accurate sexing without venting it. Venting going to be your best bet at knowing for sure. Sometimes you can tell by the shape of its fins, its colors or body shape but decideing the sex on these things is not alway 100%. i have a male and for the longest time it looked like a female judgeing it by color and fin shape. lol