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Discussion Starter · #1 ·
Yesterday when I was done cleaning Perry's tank I saw that Perry's side fins aren't working the way they used to. Her right fin was laying there while her left fin kept paddling. It looks like her right fin is hurt or something but when Perry needs to use her right fin she does in a painful way. At one point I saw Perry stop all her fins and she just dropped to the gravel. She recovered quickly but she is still not using her right fin. Is this some kind of disease or is her fin hurt? :-(
 

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Discussion Starter · #3 · (Edited)
Housing
What size is your tank? 1/2 gal.
What temperature is your tank? 75-79 degrees
Does your tank have a filter? Not yet
Does your tank have an air stone or other type of aeration? No
Is your tank heated? Yes
What tank mates does your betta fish live with? None

Food
What type of food do you feed your betta fish? Flakes and pellets
How often do you feed your betta fish? 2-3 times a day

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? 100
What type of additives do you add to the water when you perform a water change? Betta H20 conditioner

Water Parameters: N/A
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? Right fin not moving
How has your betta fish's behavior changed? No change
When did you start noticing the symptoms? Friday, dec 21
Have you started treating your fish? If so, how? No
Does your fish have any history of being ill? Constipation (a little)
How old is your fish (approximately)? 2-4 years
 

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I would start by changing the water more often. Try doing two more 50% changes a week in a half gallon. I personally would do small 20% changes daily in between the 50%s and the 100% because ammonia will build up quicker in half a gallon.

The nice thing about partial water changes is you don't have to remove Perry or any decorations.
 

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100% are not stressful if you do it right. The stress is due to sudden changes in temperature and ph. If you keep both constant, and then assume you're wrong and acclimate slowly anyway there is no fish stress. My fish get that get 100% weekly changes are more stressed out by being kept in a cup than they are by the water change. They freak at the initial cupping and are fine once they hit the open tank again.
 
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