Black edge around tail?

[MaggieLynn]

'i am having no luck with one of my females. First a hole is nipped out of her tail and now there is a black edge to it that i dont think was there before. ill try to get pics up of it. Anyone have a guess to what it is?

[youlovegnats]

Originally Posted by MaggieLynn

'i am having no luck with one of my females. First a hole is nipped out of her tail and now there is a black edge to it that i dont think was there before. ill try to get pics up of it. Anyone have a guess to what it is?

Most likely fin rot. :/

[HarlequinBBRM]

Are you sure the hole was caused my another fish? Cause the black outlining sounds like fin rot to me. If you have a pic the would be helpful for others to fully answer your problem.

[MaggieLynn]

she got the edge after the hole, and the hole is gone now, and i am pretty sure the alpha in the tank did it because i saw her chasing one that had the hole and nipping at her i will have a pic up in 5 minutes its not the best

[MaggieLynn]

Here are pics,, the first one is of the black edging and the other two pics were taken tuesday.. and if the pics for some reason are not in order the one i just took has the net in the background

[MaggieLynn]

Housing
What size is your tank? 10 gallon
What temperature is your tank? 76
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? 4 other females

Food
What type of food do you feed your betta fish? aqueon betta food, frozen blood worms (once a week) only fed that once yesterday was first day
How often do you feed your betta fish? twice a day morning and night i watch like a hawk to make sure all eat and how much

Maintenance
How often do you perform a water change? havent yet new tank, will be weekly
What percentage of the water do you change when you perform a water change? will be 25%
What type of additives do you add to the water when you perform a water change? stress coat.

Water Parameters:
Have you tested your water? If so, what are the following parameters?

Ammonia:
Nitrite:
Nitrate:
pH: 7.2 (neutral)
Hardness:
Alkalinity:

Symptoms and Treatment
How has your betta fish's appearance changed? black/dark edge around tail
How has your betta fish's behavior changed? hasnt really that i could tell
When did you start noticing the symptoms? about an hour ago
Have you started treating your fish? If so, how? no i have not
Does your fish have any history of being ill? was just treated two nights ago for a hole in her tail. - its healed. put alil stress coat in her QT tank with AQ salt it was a 1 gal QT preformed daily water change until healed
How old is your fish (approximately)? not sure was on the smaller side when i got her 2 days ago

[HarlequinBBRM]

To be honest, it looks like her natural colouring to me. If you haven't noticed any shortening of her tail, or if it doesn't look like it is "melting" away, that may just be how she looks.

[HarlequinBBRM]

Also, could be new growth influenced by the recent treatment....

[youlovegnats]

^ agree. My male VT has black edging around his tail and anal fins too! Fin rot looks like the fins are being frayed or "melting".

[youlovegnats]

She's gorgeous btw!