Hole/infecting whole body

[lilbloofish]

This morning i saw that my betta had a little hole in her anal fin near her body. i couldnt post about it because i had to get to school. When i can back from school the hole grew 3 times the size and is shredding the fin and what ever it is, it is now infecting the side of her body.

She has had a little discoloration where the infection is. I also just did a 100% water change last night, and she showed no symptoms and looked perfectly fine then.

Housing
What size is your tank?
about 2 gallons, sterilite container
What temperature is your tank?
around 76 degrees, usually around 79 but today was really cold
Does your tank have a filter?
no
Does your tank have an air stone or other type of aeration?
no
Is your tank heated?
yes, hydor 50 watt
What tank mates does your betta fish live with?
none

Food
What type of food do you feed your betta fish?
New life spectrum small fish formula
How often do you feed your betta fish?
once a day

Maintenance
How often do you perform a water change?
2-3 days
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?
Seachem prime water conditioner

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

Ammonia: about .5 ppm
Nitrite: 0ppm
Nitrate: 0ppm
pH: about 7.8-8.2
Hardness:N/A
Alkalinity: N/A

Symptoms and Treatment
How has your betta fish's appearance changed?
yellowish pale discoloration on the body near the hole, big hole in her anal fin
How has your betta fish's behavior changed?
Staying near the surface
When did you start noticing the symptoms?
She has had the discoloration for a while, maybe a month. I started noticing she was staying near the surface this morning.
Have you started treating your fish? If so, how?
No
Does your fish have any history of being ill?
had a netting injury at the base of her caudal fin, had spots of discoloration
How old is your fish (approximately)?
9-10 months

[lilbloofish]

If anyone can post soon, i am going to make a trip to the pet store because i do not think she will survive for very long.

[Capricorn]

Your ammonia looks a little high.. .5ppm even though you change all of the water? Does your tap water have ammonia in it, maybe?

Not sure on the fin, though.. is there anything sharp in her tank that could have ripped it?

[lilbloofish]

Yeah I have like 1ppm in my tap. I have .25ppm after a water change and someone said it was ammonium or something which is not poisonous. I only have gravel and a terracotta pot. She was scratching herself so I removed the silk plant.

Any help please

[baylee767]

Actually Ammonia IS poisonous. I have a saltwater tank and one time there was an ammonia spike that killed almost all my fish.

I lost my other Betta because I didn't know about minimun tank size and when he died it turned out he had a high ammonia. That was mainly because I read the label and only changed the water 1X weekly )= So Ammonia is poisonous and dangerous get a water conditioner that removes ammonia if any are made.

[Oldfishlady]

Since you are using Prime and you have ammonia in the source water-what you are seeing is most likely ammonium and harmless to the fish as you posted

Can you post a pic?
I would start by QT the Betta and doing 100% daily water changes with aquarium salt 1tsp/gal for 10 days-if you have IAL or oak leaf that would be good as well
I like to pre-mix the salt in a clean 1gal jug and steep the leaf in it to make correct daily dosage of salt and water changes easier.

Make sure you are using enough of the prime for your source water ammonia level

[lilbloofish]

She passed this morning :( but thanks for the replies. It seemed like it infected her so fast, i just couldn't react in time......

[Adastra]

Usually when it's spreading that fast there isn't much of anything that you can do about it. Sorry for your loss.

1ppm of ammonia straight out of the tap is -ridiculous-. I've heard of .25 ammonia, but not higher than that. I don't know that I'd even be dumping that much into a cycled tank with fish in it. I would not trust the Prime to detoxify that amount of ammonia. If you want to keep fish in the future, I would use Reverse Osmosis water from a fish store and treat it with a remineralizer like Seachem Equilibrium instead of using tap water. It's cheaper and more consistent than bottled water and it will always be consistent.