Does anyone know the lifespan of the goonch? I understand they grow far slower than an RTC and they reach large sizes so I figure they could be quite long lived but I'm not sure.
It is known that RTCs can live at least to 30 years in captivity (when all goes well). Some profess even up to 50 years (in the wild, if my memory serves). These numbers are hard to come by but my impression is that generally, large catfish live 20-50 years (and die of natural causes, not prematurely so to speak). I'd assume, goonch is no exception. Sorry about the round-and-about answer.