Can't say completely conclusively but there should be multiple sp of both gatf and vatf. From my experience there is indeed a sumo body variation of both vatf/gatf. I've grown out about 6 gatf and the only one I have currently grew exceptionally fast and is not as skittish as the other ones. The one I have seems to look a little diff from the ones posted @luval
keepinfish
none the less, beautiful gatf there. IMO I think it's fine to keep with stingrays at the size already. Once they get larger, they might nip at the stingrays if they float around or climb walls a lot. At least mine does, will have to see as i move them into a larger setup. I have a friend with 65-70cm that is quite aggressive so I'm not sure if they just get more and more impatient as they mature, which may be the case as we've seen posted here on MFK.
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