I would also check pH levels.. I find myself high pH does wierd things to my
fish, no matter what breed...
Timmer...
"~*~ Vosklady ~*~" wrote in message
...
"george kimes" wrote in message
...
My 60 gal. indoor aquarium has always been clear and the water has
checked good. 4 day's ago one of my male Black Molly's started
swimming with his head up and fins moving very fast. Just noticed
that a male guppy has exactly the same symptoms. All the fish have
been in this tank for 3 weeks. This is an established tank with other
healthy fish that are quite old. Any help will certainly be
appreciated.
Hi George . . . 
It sounds to me like your fish may have what is called the "shimmies".
This
is something that can effect livebearing fish and can be helped and
prevented. Are the fish moving from side to side (pectoral fins moving
rapidly without their moving forward?). If this is so, then it very well
be
the "shimmies".
Here are some pages you can look into to find some info on the "shimmies"
and what you can do:
Molly Bright (Liquid) - I've used this before, and one dose cleared up the
problem. http://www.junglelabs.com/pages/deta...tml?item=NJ050
http://fishinthe.net/html/section-printpage-20.html
http://www.fishbowlpets.com/pets/diseases.htm
http://ibmring.com/guppy/remedychart.htm
Hope This Helps! 
Regards,
~*~ Vosklady ~*~
** Sorry if this is double posted, my ISP had a bad *hiccup* right after I
initially posted. **