It is most important so realize that the present situation is not any more the orginal situation that was the case for a long time. Many Paro habitats in the peninsular Malaysia have more or less changed during the last twenty years of deforestation. From or aquarium experience we know that many soecies can be kept and even sometimes propagated in more or less clear water, but we don’t know anything about the effect of this on their life and life span. The only species which is known to be occuring in clear waters ist paludicola, and by its colouration it is obvious that this should be the case for a long time already.
All the other species mentioned occurred in former times and even two decades ago in blackwater only. The present situation cannot be taken as indicating them to be no blackwater fish. It only indicates that the whole blackwater biodiversity is doomed to extinction because the blackwater habitats are domoed to ectinction. And it indicates that some react faster than others. Luckily, alfredi and ribrimonties react more slowly obviously, but this is no indication that their typical habitat is clear water.