Originally Posted by lilnaugrim
It is a form of bicolor so they are very close but to be a "true" mustard gas they need to have a black or blue butterfly band all the way around their fins is all. They are so close but without the band they technically aren't true is all. Of course all the AquaBid and Ebay seller's are like! It's got yellow! That means it's a mustard gas!!! lol when really it's not >.< I've seen a yellow pineapple (black edged scales) being labeled as a MG and I died a little on the inside haha. But all is well! They are still gorgeous fish and maybe I'll get a little boy from you if the timing is right and they spawn well!
I'm fairly new to this, so I had no idea. Good to know! My female has a very thin line of black running around the edge of her fins, and her siblings have a more pronounced line (you can see in the background of the female picture). My male however doesn't have it at all, so we'll see if any of the fry do.
Yeah the naming on aquabid is pretty comical. My male was marked as "BLUE/YELLOW MACAW BETTA". I hope the spawn goes well, and I'd most likely have them ready by March or so.