Hi thanks for your reply. I've also read about the tails but as their the same age I guess only time will tell as I can't tell the difference as of yet :thumb:Norm66 said:I've read that the males have more of a pronounced lyre-shaped tail than the females do. More of a strand or filament at the end versus more of a simple Y-shape for the females. That seems to be true in my tank where the three that are allowed near the fry are one larger w/ filaments and two smaller w/ Y-shaped tails telling me that they're 1m and 2 fm.
It was hard to tell in your video which type the more reclusive fish had, but if they're the same age that might be an indicator for you.
Nice tank BTW.