I've had Gulper Catfish for 9 months, I bought him from the local aquatics centre where he belonged to one of the staff. Everything has been going great until the last few weeks when he's hardly eating at all. Food that he used to love doesn't interest him, neither does he appear hungry. I asked for help where I bought him and they had no ideas. I also contacted our local Zoo and they wouldn't give advice on pets!! He's such a lovely man I hate to see him like this. The guy who I bought him from thought he was about 10 years old. Any ideas.