Yep those as Aphyosemion australe 'gold'. They are really easy to spawn and if you keep them well-conditioned you may be quickly overrun by killifish fry. I stopped picking the eggs off my mops because I have so many in my grow-out tank.
They are jumpers so definitely recommend a cover.
I use green acrylic yarn to make my mops. No specific brand, just whatever was cheapest.
If you keep the male by himself (well with the female only) the white extensions on his caudal should get a lot longer.
My hendra pair were barred up and aggressive this morning so I wonder if they might spawn again soon. I like how prolific wilds are, but I just wish the fry grew faster.
I am hoping that Bandit responds to the medication. He has been eating and keeping food down since his operation to remove the corn cob, which is one-hundred times better than where he was before the surgery.
I don't actually know if it was better or worse to have a 'trial run' of what it is going to be like if he gets sick and has to be put down. Every night I think how fortunate I am to still have him sleeping at my feet.