i bought one of these a few weeks back from my local madenhead aquatics, they had it down as a Swellia (gold ring sucker) it was £8 and well worth it if you ask me.
My friend Ross had one of these and we introduced a juvi sturisoma and the Swellia attacked it, lol it was chaseing it around some rocks in his tank and was proper going after it, to be honest it was hilarious to watch, it wasnt a bad fish fight or anything it was just very funny. ever since then i have had a soft spot for them.
Mine settled in well, it loves being on the glass near the strong currant of my internal filter and is all over the tank, every now and then it diggs into the sand and half covers itself in sand and then shakes it all off, it has a lot of personality