To me primarily finrot is always bacterial and secundairy can show fungus (on the dead tissue.
So is that why only some of the edges are white? Because it started off as bacterial and the fungus ended up on the dead tissue?
Hi! I would treat the popeye, and here's why: every time a betta of mine has gotten fin rot, it's been from stress. Stress can come from poor water conditions, illness, bad tankmates, over-flaring (usually at a reflection), water that's too cold, and (my personal favorite from my current betta a few months ago) getting their tail stuck in the intake on the filter (or anywhere else). So I would treat the popeye.
Before I go too far into advice, can you fill out the emergency template? Can you also attach a picture?
In the meantime, here's what I would do:
Start on 50% water changes every other day with a high quality
water conditioner like
Prime. Clean water is always the best place to start. Also, reduce feeding to every other day to preserve water quality.
Of course!:
Tank
What is the water volume of the tank? 5 gallons
How long has the tank been running? I've had it for 2 years
Does it have a filter? yes
Does it have a
heater? yes
What is the water temperature? Approx. 75 degrees F
What is the entire stocking of this tank? (Please list all fish and inverts.) 1 betta
Maintenance
How often do you change the water? Haven't really been changing water due to treatment, but am switching back to just plain aquarium salt treatment and plan to do every other day.
How much of the water do you change? 25%
What do you use to treat your water? API Betta Water Conditioner
Do you vacuum the substrate or just the water? I use a towel and a magnetic scrubber to remove substrate
*Parameters - Very Important
Did you
cycle your tank before adding fish? No (I know better now)
What do you use to
test the water? Nothing, parents won't let me get test kit. Thinking of just buying it myself.
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.
Ammonia:
Nitrite:
Nitrate:
pH:
Feeding
How often do you feed your fish? Every other day during treatment
How much do you feed your fish? 2 pellets
What brand of food do you feed your fish? NutriDiet Betta
Do you feed frozen or
freeze-dried foods? No
Illness & Symptoms
How long have you had this fish? 2 years
How long ago did you first notice these symptoms? over 1 year ago
In a few words, can you explain the symptoms? Tattered fins, white lining on some, and cloudy eye that pops out
Have you started any treatment for the illness? Aquarium salt, started Pimafix for one day, heard it was bad and stopped and went back to aquarium salt. Hasn't done a thing.
Was your fish physically ill or injured upon purchase? No
How has its behavior and appearance changed, if at all? Tattered fins; cloudy, bulging eye
Explain your emergency situation in detail. (Please give a clear explanation of what is going on, include details from the beginning of the illness leading up to now)
A little over a year ago he had mild fin rot. It has progressed over time so much that the upper half of his caudal fin is gone, it almost reaches the body, and has a white rim. The rest of the tattered fins do not have a white rim. 1-2 months ago, I noticed his eye turned a different color and recently realized it was bulging out. I found out he has fin rot and popeye.