Hey guys Sunrise is ill

what looks like is fin rot she will not eat she swim to bottom hides and come back up for air and back down her scales look raw by her gills looks a bit better Ive use quick cure with AQ salt on 2nd day now woke up I see a long looks like poop comming out of her its clear and white / yellowish they are 4 other female betta's looks ok any thought? what could it be.
Housing
What size is your tank? 10gal
What temperature is your tank? 80-82 deg
Does your tank have a filter? yes off atm
Does your tank have an air stone or other type of aeration? yes
Is your tank heated? yes
What tank mates does your betta fish live with? 4 other fmale betta's
Food
What type of food do you feed your betta fish? pellets
How often do you feed your betta fish? once evey 2 days
Maintenance
How often do you perform a water change? once a week
What percentage of the water do you change when you perform a water change? 50% - 75%
What type of additives do you add to the water when you perform a water change? water cond,coat stress,zyme
Water Parameters:
Have you tested your water? If so, what are the following parameters?
Ammonia:
Nitrite:
Nitrate:
pH:
Hardness:
Alkalinity:
Symptoms and Treatment
How has your betta fish's appearance changed?
How has your betta fish's behavior changed?
When did you start noticing the symptoms? 3 days ago
Have you started treating your fish? If so, how? yes with permaflex / quick cure
Does your fish have any history of being ill? no
How old is your fish (approximately)? no clue = /