Hi everyone :)
It seems that something is wrong with my Bubble. I was in UK last week and my parents were taking care of my fish. They did everything well, but today when I cleaned the tank I noticed that there is something wrong with Bubble's upper fin that is located on the back. It seems torn. The first fiew threads are without any skin around and black. Also his back is a little black under them! I realy don't know what to do. This is my first fish and it is alredy for 8 months with me but I am getting worried! Can anybody tell me why his finn is like that? What should I doo?
What size is your tank?
What temperature is your tank?
Does your tank have a filter?
Does your tank have an air stone or other type of aeration?
Is your tank heated?
What tank mates does your betta fish live with?
What type of food do you feed your betta fish? : Hikari - Bett Bio-Gold
How often do you feed your betta fish? : two times in a day (4 pellets in a day)
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? : none
Have you tested your water? If so, what are the following parameters?: I haven't
Symptoms and Treatment
How has your betta fish's appearance changed? : upper fin thorn
How has your betta fish's behavior changed? : no
When did you start noticing the symptoms?: today
Have you started treating your fish? If so, how? : I haven't
Does your fish have any history of being ill?: no this is the first time
How old is your fish (approximately)? : 3 years maby ...The seller told me that it have been living in the shop for a long time.