I was cleaning my tank with the gravel vac and my two albinos are usually scarred but they have been digging all the gravel out of the side of the aquarium they claimed. Well I filled in the hole and put a pretty good size rock where they dig. I watched as they pushed the rock into the corner and took mouths full of gravel from the bottom and moved it clearing the tank. In less then an hour everything looked the same. I don't think they are old enough to breed only 10 months but they have been doing things like this for a while. Maybe at elast I have a pair!

you are correct, there are just being Oscars. sure, shoveling gravel and moving things around is something Oscars do , they are just locating a spot to lay eggs. I think your Oscars are too young to breed, however, I have found that Oscars will start acting out this time of behavior a long time before they ever start laying eggs. Whether this is something they only do during captivity is very difficult to say. In the wild, they will have vast amounts of water at their disposal, in captivity, they're lucky if they've got a few feet.

I actually like the look of the tank after they have moved the gravel around