Hello! I'm a long time reader, first time poster because I feel like everyone here has some really great advice and I need some help! But first:
What size is your tank? 2 gallons
What temperature is your tank? 76-78 degrees
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? none
What type of food do you feed your betta fish? Omega One Betta Buffet Flakes (and occasionally freeze dried blood worms as a treat)
How often do you feed your betta fish? Once a day
How often do you perform a water change? Every second day
What percentage of the water do you change when you perform a water change? 50%
What type of additives do you add to the water when you perform a water change? Prime
Have you tested your water? If so, what are the following parameters?
Ammonia: in between .0 and .25
Symptoms and Treatment
How has your betta fish's appearance changed? Tips of the fins have begun to curl, entire pieces of his fins are missing (he's a crowntail and missing three of his 'tendrils')
How has your betta fish's behavior changed? Behaviour hasn't changed
When did you start noticing the symptoms? 2 months ago
Have you started treating your fish? If so, how? No treatment aside from regular water changes
Does your fish have any history of being ill? No
How old is your fish (approximately)? I've had him for 8 months, but seeing as he was from a pet store, it's hard to say!
I've had my crowntail betta Sven for 8 months. When I first bought him he was the saddest looking fish (pretty bad fin rot and sluggish) -so of course, I had to rescue him. His fin rot cleared up quite quickly and he grew new and beautifully long fins. Clean water seemed to fix it without any issues.
I have him in a filtered 2 gallon tank, heated with frequent water changes because after trying to cycle a tank that small I realized it wasn't going to happen (I'd have him in a 5 gallon but unfortunately my current downsizing of living space has prevented me from being able to do that yet). I have ammonia and ample chlorine in my tap water (which is soft, big city water), so aside from shifting the dosage of prime (three drops per one gallon of water), the frequent 50% water changes have been the only way I've found to keep the ammonia at a low to .0 level. I keep his tank clean and swish around the filter media in some tank water about once a month as I've read that I should do.
A couple months ago I noticed the ends of his tail curling slightly and then a few ends of his tail appeared to have "broken" in the middle. The three ends of his tail that looked snapped in the middle have now fallen off leaving rounded edges (aside from one that looks tattered). He has silk plants in his tank and currently no little cave to hide because I took it out in fear he'd maybe snagged himself on part of it and caused an injury (I had tested his little "cave" with panty hose but upon cleaning his tank one day after noticing his tail, I realized a sharp edge on the inside and promptly removed it). He has nothing else in the tank to cause his fins any damage. I'm going out on a limb and assuming this damage either lead to or was caused by fin rot. I tried to get a picture for you, but it's really hard to take a good picture of a mobile betta that showed what I was talking about and I didn't want to traumatize him with camera flash.
ANYWAYS, I would love some expert advice on how to go about treating this. Am I correct in assuming it's fin rot? I have aquarium salt on hand that I'm fully prepared to use, but I'd really like to avoid any chemical intervention such as antibiotics unless it's absolutely necessary.
Aside from treatment, I was also hoping for opinions on how to lower the ammonia content of the water. I'm worried the constant water changes or the higher dose of prime are stressing him out and stopping him from healing. Am I doing anything wrong?
Hopefully I didn't over-inform and talk too much. I'm doing my best, but admittedly he's my first Betta fish and I need some help. Thanks in advance!