When I purchased my fish 10 days ago he had a small piece of his caudal fin missing, which I ignorantly thought was just how he was built. The rear portion of his anal fin also appears to be frayed. The missing piece on his caudal fin seems to have gotten a pinch bigger.
Is this finrot?
What size is your tank? 5 gallon
What temperature is your tank? 78-80 F
Does your tank have a filter? Yes
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? Currently none. However, I tried 2 ghost shrimps a few days ago but he killed them both within 24hrs.
What type of food do you feed your betta fish? Hikari Betta Bio-Gold & occasionally freeze dried brine shrimp
How often do you feed your betta fish? 1 pellet, 3-4 times a day
How often do you perform a water change? It depends bc I am currently cycling but about two times a week.
What percentage of the water do you change when you perform a water change? 25-45%
What type of additives do you add to the water when you perform a water change? Nutrafin's Cycle, API Splendid Betta water conditioner, & Kent Pro-plant if need for the live plants
Have you tested your water? If so, what are the following parameters?
Yes, and I have also been cycling the new 5 gallon tank he is in for the past week.
Ammonia:0.50ppm before water changes, 0.25 after water change
Nitrite: 0.5 ppm
Nitrate: 10ppm (possibly 20ppm, hard to tell with color chart)
Hardness: ? (using reverse osmosis water)
Symptoms and Treatment
How has your betta fish's appearance changed? missing portion on tail seems to have possibly gotten larger
How has your betta fish's behavior changed? It has not, he is very active and has a healthy appetite.
When did you start noticing the symptoms? Two days ago
Have you started treating your fish? If so, how? No
Does your fish have any history of being ill? At time of purchase (10 days ago) his caudal fin had a piece missing and all his other fins were how they currently appear. He also had an episode of swim bladder on my 2nd day with him, which resolved within 18 hours.
How old is your fish (approximately)? He appears to be a mature adult, 2-3 inches long- he was purchased at a LFS.