Dulling head scales

[LissaLooHoo]

I recently noticed in my 20 gallon sorority tank that I my blue crowntail has this odd discoloration on her head. I recently added a heater and the water is kept at 78 degrees. I feed them blood worms, and she still has a nice sturdy appetite, and doesn't seem to be lethargic. She's not lethargic, and she still is happy and responsive. Could she have just scratched it on a castle I have in there?

[Sena Hansler]

Hey, were you the one (sky hokaia) replied to on yahoo answers? :)

There is a sticky you can fill out.

Housing
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?

Food
What type of food do you feed your betta fish?
How often do you feed your betta fish?

Maintenance
How often do you perform a water change?
What percentage of the water do you change when you perform a water change?
What type of additives do you add to the water when you perform a water change?

Water Parameters:
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?
How has your betta fish's behavior changed?
When did you start noticing the symptoms?
Have you started treating your fish? If so, how?
Does your fish have any history of being ill?
How old is your fish (approximately)?