Fish Tail Gone Purple/white

[madfrog2000]

Hey my betta fish tail (The top one) has gone a weird colour + the skin of the fish has changed too.
Could anyone please ID what's wrong with it? And what I can do to stop it? 

Thanks

 

[bluesword23516]

Looks kind of like fin rot.... What are tank parameters?  Is it filtered? Heated?   When was your last water change?  Does he have tank mates? 

 

[madfrog2000]

Hey my guess was fin rot but not 100% sure.

Thanks for the quick response.
PH = 7.2
Ammonia  = 0ppm
Nitrite = 0ppm
Nirate = 5.0 ppm
Filter = Yes
Heated = Yes
Water Change = Today I do it every Thursday
Tank mates = No
Size Tank = 16L

**NOTE** 
I did move the tank about 4 weeks ago into the garage as the house was being painted and moved it back inside the house last week. 

 

[PrairieSunflower]

I was thinking possibly columnaris, but that isn't something I've dealt with before.  Hopefully someone else can come along and confirm or rule that out.

 

[madfrog2000]

Thanks, It does look abit like Columnaris from what iv seen on google images. Hopefully someone can confirm this though before I go further into looking for a treatment for it.

 

[PrairieSunflower]

Try messaging Wilder, she is quite knowledgeable in knowing what to do.

 

[bluesword23516]

Tank sounds fine, it seems like the paint would be a problem, but you did the right thing with it.  Do you use perfumes in the same room? 
How old is your betta?

 

[madfrog2000]

Hey I let the room air out for a week and I have 3 other tanks in the same room no problems with those fish as of yet. 
Nope no perfumes get used in that room. 
I have had the betta for nearly half a year I don't know how old it was when I bought it tho. 
Thanks

Try messaging Wilder, she is quite knowledgeable in knowing what to do.

Have messaged her now Thanks