Which are the best Pisces Partner Compatibility zodiac signs. I have heard that Pisces females most of the time fall with the unsuitable partners. Then which are the right marriage partners for a Pisces Female.

The best way to find out is through an Astrological Chart.  They Taurus is a good sign for Pisces but my marriage only lasted 7 years.  When I did my chart for the pair of us it showed us as being a poor match.  My current partner is a Pisces.  When I did our chart it showed us to be a very good match.  So I think it all depends on the charts of the individual.  I'm partial to Pisces though.;)  

Pisces are known to get along with Scorpio, Cancer, Pisces, And Taurus. Just off the top of my nogging. I may be wrong. Wouldn't be the first time. lol

Safe Journey

Forgot to add that environment and other issues play into the picture when it comes to finding a Pisces Partner.  Ex: Religion, Political, Life Goals, Etc.  

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astro.com -To check chart compatabilities for free

Well surely Capricorn is compatible with Pisces too. All earth and water belong together.
I have my Venus in Pisces, and I am really attracted to Virgo Venus or other Virgo planets. I have also seen a Pisces girl who just could NOT leave a Virgo man, even though they fought. So, I think Virgo is magnetic attraction, but can be difficult. It might work though, if you really work at it and try (from both sides).
Really, you have to take the whole chart into consideration though.
If you post your chart, I'd be happy to give my feedback on the best "sign" (based off your Moon, Venus, Mars, etc.)  

I m quite pleased.. thanks to all. I am only referring to Sun Sign Astrology... But, I have to learn a bit about Vedic Astrology too I guess..I am going in the right direction but, a bit confused as well.

Anyways Thanks a lot