Hi all! Curious if my gourami is just an old grump or if there is another issue. He has been nipping and chasing my blushing blue angelfish and intimidating him. (I have another kissing gourami that I got as a pair with this one that he chases around the tank during feeding time. This has happened since I got them 4-5 month ago.) This has only been happening yesterday and today. Any thoughts on what changed And what I can do? Thanks.