After taking 157 photos
out of which, believe it or not,
these are the best,
I decided to try to video them!
The mollies are the black and white ones cunningly camouflaged as fast-moving lumps of gravel. The very fattest of them is pregnant, the next fattest may be, and the longest leanest one is the male. Oh - and the other fish in the tank are harlequin rasbora, golden danio and the solitary survivor, originally billed as a harlequin too - but very clearly not!