WildCAught;2529534; said:
Add a school of 6"+ Tinfoil Barbs.
unfortunately, very unadvisable. If you think Oscar's are greedy, get a load of these guys. They can easily get to 12 inches and are probably one of the greediest fish I have ever kept. I only had two and I got them at around 7 inches. They require a very large tank if you keep them in groups. They are extremely skittish fish so if not kept in large tanks, will for ever be swimming into things and get spooked quite easily.
I offloaded mine to a friend not long after I got them. I think they are around 10 inches now and she regretted taking them off me and is also looking for a new home for them.
As for whether or not your Oscars are pairing off ready to breed, I can't see any evidence of this by your video. Two Oscars will go through this behaviour and never breed. Try putting a large flat rock in your tank. Oscars nearly always choose surfaces like this to lay their eggs on. From the experience I've had a breeding pair of Oscars, a few days before they lay the eggs, they will concentrate on cleaning the surface where the eggs will be laid. They will become very territorial or not tolerate any other fish anywhere near the rock.
You may notice a swelling in the females abdomen when she has developed her eggs. You will also notice her breeding tube sticking out, you cannot miss it. And if they are about to breed, the males breeding organ will also be producing, this is much smaller, it looks like a little spike.
Occasionally, eggs will come from nowhere and completely surprise you. If the males organ is not protruding, then he is either not ready, possibly a female, or they are not paired up.
Very often, breeding is very erratic. It may be months in between eggs. Other times, eggs, are produced every few weeks.
That's my two for what it's worth