+1datnoids are the slowest growing fish ever...it takes them years to get to monster size (12" or bigger)...when i had mine...they were in a 180g but i had to downsize and keep 5 of them in my 90g...they are not big swimmers at all and i really don't think they need to be in a 6' tank unless you have had them for over 10 yrs...
I have to disagree here bro my dat grew from 6-14” in less then two year. It all depend on the fish and owner. If they take pellet thy will grow faster then fish that only take live or frozen. I have over 7 dat at all time in my 600g tank. Those that take pellet out grown the one that don’t two to three time. Feed a lot and a lot of water change will get your fish bigger faster then those that don’t feed/water change as offenddatnoids are the slowest growing fish ever...it takes them years to get to monster size (12" or bigger)...when i had mine...they were in a 180g but i had to downsize and keep 5 of them in my 90g...they are not big swimmers at all and i really don't think they need to be in a 6' tank unless you have had them for over 10 yrs...