Aww, he looks like a cute little double tail ^.^ The name thing is more of an assumption, but from what I've gathered, it's pretty much just that >.>... You can get dragonscales in pretty much whatever kind of betta you have, but I suppose they just find it better to sell dragonscale plakats... I wanna say my betta is a dragonscale- he's uber metalic looking with mainly white with red spotting and finnage.. but he's a halfmoon betta... I've also seen a few 'dragonscales' that looked exactly like him, save for the short fins xD
Yeah, it's pretty much next to impossible to cycle a 1 gallon tank. You get lucky if you can get a 2.5 gallon (and from what I know of that's usually with a filter), but with cycling it's better to cycle tanks 5+ gallons.... You might want to get your betta something a bit bigger, but that's just my opinion- usually the smaller the tank, the more water changes you have to make and vise versa for larger tanks. It's also easier to heat larger tanks and usually the heaters I've seen are more designed for 2.5g+.. Mainly because tanks smaller than 2.5g just aren't large enough for the heater to really heat the entire tank (I used a heater in a 1.5g and when I'd change the water, I could feel the difference in how warm it was at the top and cold it was at the bottom- stuff like that can possibly stress your fish). And even if your tank is still able to hold a good temperature outside of the reptile room, it's convenient to have an adjustable heater on the side for those moments when your fish gets sick and you need to treat them- some ailments are treated best with temperatures more than 80 degrees.