can't tell them apart when they are young. you'll need to wait till they are mature enuff which takes years. even experts have problems telling them apart.
can't tell them apart when they are young. you'll need to wait till they are mature enuff which takes years. even experts have problems telling them apart.
Well that sucks. if i had 6 400 gallon tanks i would go ahead and buy 4 more arowanas and toss them in the tank to see if any pair up, and leave the paired together while seperatin the outher ones. but i dont have that many tanks.