[quote=”bartian” post=1579]
@Peter
C. bullosa is traded sometimes, is this the real deal or some other species resembling bullosa? I would like to give it a try then.[/quote]
The first “C. bullosa” a saw two decades ago on the list of a Netherland’s trader (and bought) turned out as a quite normal C. affinis with very bullose leaves. Insofar your question is fully justified. But I hear that nowadays sometimes the real C. bullosa is sometimes in trade.
Nevertheless I do not recommend to buy it for that purpose of establishing an advanced aquarium for licorice gouramies. To my knowledge there is (nearly?) nobody at present capable of keeping it alive or really grow it for a longer period submersed. All experts grow it (and many other species of the soft south-east-Asian running waters) emersed.
Since our debate evades a bit into special questions on Cryptocoryne, I shall inform Günter Oberjatzas (Hanover) who is one of the leading experts on this and – what is best! – who is member of the Parosphromenus-Project! I shall ask him to write something for this discussion. (If it is conveniant for him to do that, of course …).