I really would like to thank you all for this thread and it's submissions. I have never had a catfish like my RTC before. I always only had cichlids. When my RTC had developed this huge belly, my whole family and I where seriously concerned. I came here, and especially in this thread, found out that it is common. I know this may not seem like much to you, but it is a big relief to us. We really enjoy our RTC, Thank you all!!!!!!!!!