First of all, what exactly is floppy tail???
I believe that it is a weakening of the bones that connect the tail to the body of the gecko, somewhere in the pelvic region.
It has been described as a softening of the pelvic bones.
It is for this reason that the floppy tail has often been associated with a calcium deficiency. Basically, the weight of the tail is too much for the pelvic bones to support; this causes the bones to literally bend, and the tail to flop.
Floppy tail syndrome among the ciliatus geckos seems to be caused by several factors, in my opinion the most important piece of evidence is to be found in the animal’s evolutionary history. This gecko species, being a lizard that lacks the ability to regenerate a tail, has evolved in its natural habitat as basically a tail-less gecko. It is important hear to note that floppy tail has been observed in wild geckos. De Vosjoli's book mentions that in the wild the over-whelming number of adult geckos found were tail-less. Because the animal has evolved (for the most part) without the weight of its tail, it is possible that it has also evolved with a pelvic bone that does not have the strength to fully support the weight of the tail.
It is possible that the pelvic bones have evolved to be weak, and that the geckos evolution plays a larger part in these symptoms, that any calcium imbalance, or lack of climbing branches.
