My fish has this strange dent or hole above his upper lip about less than half a milimeter wide, but lengthwise goes across his face (parallel to the lip) for the length of his lip.
Any help or ideas is greatly appreciated!
What size is your tank? 2.5 gal
What temperature is your tank? between 70-74 (our house makes it hard to keep an even temp; my fish has been living in a changing temp all his life, so he's as used to this as possible)
Does your tank have a filter? yes
Does your tank have an air stone or other type of aeration? no
Is your tank heated? with an exterior lamp
What tank mates does your betta fish live with? none
What type of food do you feed your betta fish? Hikari betta bio gold pellets, typically 2 in the morning and 2 in the evening. Occasional freeze dried bloodworm (now that he will eat them) and biweekly frozen pea bits, weekly frozen brine shrimp.
How often do you feed your betta fish? twice a day, since it's a small amount
How often do you perform a water change? 3 or 4 times a week, 10% ish each time so that in the course of a week it's 30-40%
What percentage of the water do you change when you perform a water change? see above
What type of additives do you add to the water when you perform a water change? since i use bottled distilled water, with some spring water mixed in to get the pH to stay around 7, i do not use additives.
(my well water is like liquid rock/super high pH, so i can't use it)
Have you tested your water? If so, what are the following parameters?
I tested them last week.
Nitrate: between 10 and 20, the colors on that chart are so close that 20 and 40 look identical to me.
pH: right now is 6.9
Hardness: i don't know since i don't have this kit
Symptoms and Treatment
How has your betta fish's appearance changed? He's had a bump on his nostril for over a month. He had the same problem last year, and I managed to treat that successfully. I thought it would run the same course this time but it didn't.
I looked at him today and there is a noticeable dent in his face between his lips and his eyes!
I also noticed yesterday he either injured his bottom fin or he's got some fin rot there... which is weird.
How has your betta fish's behavior changed? He's been hiding a lot lately, and he's been jumpy/jittery. He's not eaten today. He would be interested in food, bite at it, but not get it, and then back off. This is not his typical aggressive self. I fed him some pea just a few minutes ago, but he barfed it back out. I'll try again in a little bit. (he's hiding in his castle right now. :\ )
In fact, he hates pictures, but he held still while I photographed him today. He's never held still like this before. (my camera is red... and you know how male bettas love/hate red)
When did you start noticing the symptoms? The bump was ongoing, so I wasn't concerned, but the hole/dent I just noticed today. As for the fin injury, I'm not concerned since I know he does it to himself and he typically heals up just fine - but I thought I'd mention it in case it may be relevant.
Have you started treating your fish? If so, how? When the bump resurfaced I put a little salt (by a little, i mean less than 1/4 tsp in the 2.5 gal tank) in and also about 2 drops of Stress Coat plus.
I know, some people hate salt, some people hate Stress Coat.
Typically I run my tank without either in the water unless I see he's hurt a fin, then I add a few grains of the salt to help ward off fungus as the rips heal.
He's never exhibited problems with salt or stress coat in the past.
Does your fish have any history of being ill? I hope I've documented this well enough above. Last year he had a bump on his nose, it went away, went to the other nostril, then went away. I decided, with the help of this forum, it was probably lymphocystis. Frequent water changes, and a little salt really helped him.
I'm worried because this dent in his face is new, and I don't know what it is or how to treat it.
How old is your fish (approximately)? About 2 years old.
Maybe I should also mention there is a slimey film on top of the water. It goes away when I change the water, but it doesn't take long for the slime to come back (about a day or 2). It cakes on the edge of the sponge. It's white on the sponge/hanging out on the sides of the filter.
I remove as much as I can when I do a water change.
Here are some pictures.
As you can see, it's not a smooth line from the top of his head to his lip. It used to be smooth.
Here, you can see the slime on the top of the water. His eye to the left of the picture, down from it there's a white spot and then across there's another white spot.. That gash/dent thing there that's a white and darker red is what I'm talking about. That's not his mouth--that's the dent in question.
Here's another side shot where you can see the dip in his face. (please excuse spots. heh. i don't wipe the outside of the tank all the time. it's the inside that counts, right?)
This last one I edited with yellow arrows to point at the dent. That whole strip there is indented or sunken in. :(
(took these pictures before doing the water change today. it's clear ontop now)