I’ve named my Oscar
Tiger 
because he is very stubborn, moody, dangerous and voracious! But I love him so much; he is a part of the family now! I think he is not one of those gentle, playful oscars! Yesterday I gave him 3 big female guppies and he ate them up almost instantly! He likes to ambush his prey from below, I love watching him hunting this way! I tried for days to feed him pellets but he didn’t touch a single one! So I’m feeding him small shrimps, prawns, bloodworms, tubifex and small fish. I think his first choice is small fish, and then the shrimp and bloodworm, but he hates vegetables! Sometimes he jumps out of the water when I approach the tank with food and open the aquarium cover.
Small shrimps have tough skin, is it going to cause any trouble for Tiger?
Any suggestions on what else I can feed him? I think Tiger is getting heavier every single day! He is almost 4” now, but he was almost 3.5” when I bought him 3 weeks ago!