Looks like I might finally have no choice but to remove Neptune into his own tank.

I hadn't planned on using my old 10 gallon for that; but Neptune's behavior is so
betta-like I am not sure I have any other option anymore.
Neptune's always been a bit on the bully side since I got him 9 months ago. But it's never gotten out of control. And it's ALWAYS been related to food. The rest of the time.. he didn't seem to care what my sweet cories were doing.
But now that the rasboras are in there things have completely changed. What's a little odd is that he doesn't seem to care at all about their presence, in that he never chases them at all. But he does need to compete a bit more for food; as the rasboras are all so much faster than he is. So he's not glutting himself anymore. I hand and spot feed for the most part and make sure everyone gets some food in the tank. But Neptune is likely a bit more hungry than he has ever been used to being.
So now he has become rather relentless with my poor, sweet cories. He guards anything remotely left on the bottom and has been chasing them way too much for comfort.
I am not happy.

I love my little Neptune but he cannot live with my cories any longer. I think he needs to live alone in his own tank.
Just wanted to share.