Question
I just bought my orchid a month ago.  It has huge floppy leaves.  It has moss as the soil.  When I bought it the moss was wet, and it still hasn't dried out.  I have another orchid whosee leaves are firm, and beautiful, and I've watered that one 3 times in the last month.  Why isn't my other orchids moss drying?  One of the orchids leaves has turned yellow, and the spike at the end is starting to droop.  The flowers are starting to wilt and fall off.  I feel as though I should water it but the moss is still wet.  What do I do?  
My other orchid with the helthy leaves;  is a year and a half old, it was and is healthy, but after the flowers fell off I cut the spike to 2 inches. It rotted off but nothing has come back since.  New leaves have grown.  Will the spike ever grow back?  Also there are some tiny insects in the moss that I only see when I lift the pot   (they come out of the hole in the bottom of the pot)  Usually under 5 are on the plate.  Any help is greatly appreciated.  Thank you muchly.

Answer
I do not recommend growing orchids in moss.  Moss tends to compact over time, reducing air flow to the roots.  Moss, depending upon how compact it is, will either dry out too quickly or stay wet too long.  I recommend that you purchase a bag of orchid potting mix.  Then, remove your plant from its pot and spray off the roots thoroughly. You may find roots that are "mushy" or falling apart.  These roots will not support the future (or present) growth of the plant and should be removed.  Then find a plastic pot with plenty of holes in the bottom that this plant with its good, firm roots, will fit comfortable in, tuck the roots into the pot and gradually fill the pot with the new potting mix (you may soak the potting mix before use).  This will give your plant a head start for the new growing season.  An annual repotting is recommended.

Many phalaenopsis naturally have their flower spikes die back and those brown spikes can be removed.  The next flowering will be from a new flower spike that forms at the base of the plant.

It is not unusual to have older leaves turn yellow and fall off.  What you need to do not is protect the future growth of your plant.  It will need to growth new leaves and roots and it needs a special orchid potting mix that permits air flow to the roots (a local garden center should have this).