I've got one male and one female gourami in my 36 gal. It's been about two months now and yet the male still seems a bit hostile towards the female. He's even grown to be 3 times larger than when I bought him, size isn't an issue for me but for Rihanna it might be ( after witnessing the attitudes they had for each other they were aptly named Chris and Rihanna by my little sister). Is this alright? I've looked at Rihanna and she looks as healthy as ever, but I see her constantly being chased by Chris and she's always hiding. I just want to know if gouramis naturally behave this way towards one another and if I need to rehome Rihanna any time soon.