did you try to mix the Gold pellets with their staple pellets?
That could help.
My Oscar only ate live worms for a year, and recently started taking the Hikari pellets.
because he only ate mealworms, i fed the Hikari pellets to the worms, prior to feeding them to my O.
I didn't force my O into it by starving him, he just started to like them.
You could try some garlic juice.
Soak the pellets in the garlic juice before feeding them to your fish.
Or BGH ultrabite...
check the "cure for oscars/ciclids not eating" thread.
www.oscarfishlover.com/oscar-fish-advice...ids-that-stop-eating