Several answers come to mind, It's not nice to anthropomorphize guppies though, so we'll fold those jokes up and toss them. :)

If she is in with the males, she isn't likely to be "untainted". To be a female guppy (or livebearer) in a tank with males of the same species is to be a pregnant guppy (or livebearer).

At the risk of making her a little human, she may just be tired of being pestered.

GG is being most moderate in describing that male's behavior. Put your ear next to the tank and listen to all the little voices going, "please, please, please...."

A field study of swordtails showed females prefering the company of large males (those big studs which sexed out last) because the big male would keep the small sneaker males away (most of the time) from her, allowing her to forage for more food and spend less energy which could then be used for fry and growth.

In nature your female could flee the males. In the tank make sure it is well covered, at least around the edges, so she doesn't jump.

If the temperature in Southern California is 80 degrees, drop it a degree or two. ;)

Maybe the water changes will have some calming effect. I probably drove my parents crazy dropping a few ice cubes from time to time in the tank - maybe a futile effort.

How about a fan blowing on the tank surface? Opps, it's covered.

Feed everyone until they are waddling and can't fight. (That was my grandmother-in-law's solution to most crisis - invite them to dinner.)

Leave more plants, lock rocks, left over leggos, whatever for more shelter.

SL's book title sounds interesting. I think I saw it on E-Bay. (Honest!)

There is a very technical collection of studies on livebearers edited by Snelson and Meffe. In there is a study about female guppy mate choice and male coloration. I'll find it and summarize it in a log entry sometime.

All the best,
u.s.

"...sometimes, I admit, I haven't had the time to read all of unclescott's sage advice."

Asleep huh? :)

Only the greenblue slime - actually cyanobacteria - is a sign of an unhealthy tank. The others are a sign that something is out of balance.

Algae may be nature's way of correcting an imbalance. I have a couple of tanks which have gone over to hair algae. The fish are healthy. I'd bet that if I did perameter measurements I'd find that the lush hair algae is sucking all of the waste materials out of the water. (Any impliments used with those tanks are not used with other tanks until bleached.)

Please describe your algae. Maybe more apt suggestions can be made.

I'm really sorry that you are discouraged about your tank. This is an avocation not a vocation (that for GG) and we shouldn't have to spend our lives fiddling with it - unless we want to.

You would have loved watching me try to network two computers this morning. Good thing my daughter was there. ;)