Maybe a X certificate.
The Black Widow Tetras (there are 7) have been chasing round the tank, looks like they are hoping to mate. two were after one fish, but she wasn't going to play. Very entertaining first thing in the morning
Before anyone asks, the water parameters were ok, so I have assumed that's what it was all about and I did see a clip on YouTube with the same behaviour.
What a lovely day here in darkest Dorset. The grass is beginning to gain a bit of colour and stand up, so the next thing will be mowing! Enjoy the rest of sunday