Martin: This is new to me. P. filamentosus has been distributed by trade in former years but I have not heard of any shippings this year so far. On the other hand it’s rather likely that this fine species is in the trade once again. If you can get hold of one or two pairs you should take them if they look healthy. With Parosphromenus you never know: Every time it could be the last occasion.
And mind: P.anjunganensis is at present available in different European countries; the origin seems to be(Glaser)(D) and/or Ruinemans (ND). I have seen photos and can confirm: it’s anjunganensis, but some fish that I have seen were in very bad condition. I think they live since long in wrong waters and are not fed accurately. But I have seen healthy individuals in between.
The other “species” is always the same thing: “deissneri” that never are deissneri. Today, they are mostly spec. Sentang from Sumatra. Or “blue line” (a mere trade’s name including different fish of the bintan-group, but obviously always coming from Sumatra. If you could have a look you should do that, but it is highly improbable that it’s any of the well-described species. But if you do not have spec. Sentang already, if the fish are different, then it might advisable too to take some home.
And a request to all readers in Europe: Please have a look in your country if you can confirm the presence of anjunganensis and possibly filamentosusand other species/forms! And tell us and our friends here!