Not always. The Oscar needs to be sexually mature. Usually 1 year plus and over 8". Then they can be vented. Otherwise they just look male. As far as I was concerned
male = oo
female = oO
Not always. The Oscar needs to be sexually mature. Usually 1 year plus and over 8". Then they can be vented. Otherwise they just look male. As far as I was concerned
male = oo
female = oO