got mine at 6-7 inches. strictly packaged food for it- sinking pellets. after one and a half years and two tank upgrades later it was pushing 20 inches. lastly, kept in a 280 gal. 5' x 3' tank with a 22" RTC. its growth rate kinda slowed down after 18 inches. I could've kept it for atleast another year or so in the 280 but the fights with the RTC were getting more and more serious every week. so traded in both the cats for store credit.
now I'll get cats again only after I build a 600 or so gal. tank. got the space for it just need to gather the enthusiasm to start such a mammoth tank.

[/QUOTE
I MUST APPOLOGISE FOR BEING HALF ASLEEP WHEN I POSTED (JUST A DUMB-ASS MORE LIKE

) BUT I WAS THINKING OF PIM ORNATUS (DOH) I ACTUALLY HAVE A MARMORATUS (ACCORDING TO THE DORSAL FIN RAYS) THAT WAS SOLD TO ME AS PERRUNO (WHICH IT LOOKS MORE LIKE WHEN YOU LOOK AT PHOTOS) ITS AROUND 28-29IN TOTAL.

LIKES TO SIT ON THE MEG.