Harlequin ghostpipefish together with four others around a large rotten trunk that was lying on the sand. Click here to see a gown up ghostpipefish.
Ghost pipefish seem to form monogamous pairs for the reproductive season and maybe longer.
These pairs are found on a speecific site dor example a crinoid or a sponge for days or weeks. In Dauin I found one pair over 3 weeks always at the same sunken tree trunk. Unlike seahorses the female has a brood pouch for the eggs. The larvae are discharged from the pouch by sudden contractions. Ghost pipefish young are transparent and quite large as seen on this photo.