I almost had the opportunity of visiting the location earlier this month to learn more about the natural habitat but could not make it due to not being able to re-schedule my ferry to a later time. But my friend brought back a bottle of water collected from that location to satisfy my curiosity: pH = 6.6.
My friend also had the great fortune to be able to visit the natural habitat of C. longicauda in Johor. According to him, the habitat is actually some man made ditches (so I do not think that the pH would be very low for this location too). He collected 2 specimens with spathes again and passed them to me and fortunately this time round, at least one of the two spathe managed to open (well, at least for a while before falling).I also have one specimen from Marup / Engkilili in Sarawak bought from a fellow collector as shown below. I am however clueless of the natural environment of the habitat there since it is a little too far for me to visit (anyone who have visited that locality before kindly let me know more about it, thanks!)
Happy Chinese New Year to everyone!!!