My female guppy has been steadily getting worse over the last couple of days. She will not eat and it appears she is loosing her fins at an alarming rate. The water parameters are good and i have been doing water changes at least every other day. Her gills are a little red, and i notice some of the fish scratching their gills on stuff in the tank. Also she had a white stringy poop for a couple days. I have done lots of searching on-line for possible problems, but none describe all these symptoms.