Betta Fish Forum banner
1 - 4 of 7 Posts

· Registered
36 Posts
Discussion Starter · #1 ·
Rostmist arrived home. Looked and behaved normal.
Out of precaution because the other betta seems sick, I put him to an 1.4 gallon quarantine tank. Completed 5 days API General Cure treatment.
He became more inactive over time and stayed at an upper corner of the quarantine tank a lot. Also seemed to be less interested in food.
I cleaned and disinfected everything of the main tank.
Rosemist was put back to the main tank which has been cycled. He was fairly inactive but swam around occassionally.
I added Seachem Equilibrium to increase hardness of the purified tap water in the tank, which raised the pH from 6.8 to 7.7.
30% water change to remove some Seachem Equilibrium. pH decreases from 7.7 to 7.3.
Rosemist was still inactive, did not eat, looked normal.
Rosemist has red dots at the tail of his fins. He stayed at the top corner most of the time. He did not eat.
To avoid further stress because of environment change, I kept him in the main tank. Started aquarium salt treatment.

11/15/2022-11/20/2022: API General Cure in 1.4 gallon quarantine tank
Day 1: General Cure, wait for 48 hrs; Aquarium Salt
Day 3: General Cure, second dosage; Aquarium Salt
Day 5: End General Cure.

11/27/2022-: Aquarium Salt Treatment in 16 gallon main tank
Day 1: Aquarium Salt: 3 tbsp for 16 gallon tank. Recommended dosage: 1 tbsp per 5 gallon; Bettafix: 2 caps; Tannin extract; API Stress Coat, API Stress Zyme, Kordon Protection
Planned for 4-5 days

Possible diagnosis:
(1) Stress induced by environment changes from main tank to quarantine tank to main tank, and sudden pH change from 6.8 to 7.7 to 7.3 within 2 days.
(2) Stress causes tail nipping.
(3) Stress causes fin rot.


How many gallons is your tank? 16 Gallon tank with a separate sump. Divided into two housing two betta

Does it have a filter? Biomedia, activated carbon and filter floss in the sump.

Does it have a heater? Yes.

What temperature is your tank? 78 F

Does your tank have an air stone or other type of aeration? Yes.

Does your Betta have tank mates? What kind? None.


What food brand do you use? NorthFin. Omega One. Aqueon Pro. Ocean Nutrition.

Do you feed flakes or pellets? Pellets. Dried brine shrimp. Dried bug bites.

Freeze-dried? Dried.

How often do you feed your Betta? How much? Once or twice per day. A few pellets that they can eat in one go. Excess are swept away.


Before your Betta became ill how often did you perform a water change? 25% weekly. 75% monthly.

What percentage of water did you change? See above.

What is the source of your water? Purified tap water.

Do you vacuum the substrate or just dip out water? Vaccume substrate.

What additives do you use other than conditioner? What brand of conditioner? API Stress Coat. Kordon Protector. API Stress Zyme. API Leaf Zone. Easy Carbo. Seachem Stability. Fritz TurboStart. 1 teaspoon of aquarium salt per 5 gallon.

Water Parameters:

What are your water parameters? Please give exact numbers. If tested by pet store please get exact numbers. "Fine" or "Safe" won't help us help you. Important: Test your water before the regular water change; not after one.

Ammonia: 0.005 mg/l (ppm)

Nitrite: 0

Nitrate: 0

pH: 7.3

Hardness (GH): 0 CACO3

Alkalinity (KH): 40

Symptoms and Treatment:

When did you first notice the sympto

ms? Nov 27

How has your Betta’s appearance changed? Red dots at end of fins.

How has your Betta’s behavior changed? Stayed at the top corner of the tank. Stationary a lot of the times.

Is your Betta still eating? No.

Have you started treating your Betta? If so, how? Started salt treatment. See a
Cloud Sky Plant Feather Petal

Flower Plant Petal Twig Flowering plant

Cloud Petal Underwater Liquid Water

Water Underwater Fluid Marine biology Liquid


Does your Betta have any history of being ill? No

How long have you owned your Betta? 1 month

Was he or she ill or suffering some sort of damage when purchased? No.

· Registered
36 Posts
Discussion Starter · #3 ·
how did you cycle a 16 gallon tank in a week...I need your secret...

Also, why would you throw all that medicine at your new fish just bc the other one looked sick? I must not be fully understanding. What happened to the other fish? Where was he when you cleaned and disinfected the 16 gallon?
The tank was cycled very fast because I keep the biomedia.

There was a surge of biowaste after a betta passed which has a cascade effects. Then Rosemist got into a fight with part of the fins bitten. This leads to the disinfecting the tank and treatment.

· Registered
36 Posts
Discussion Starter · #5 ·
You mentioned that he has no tank mates, but he’s in a divided tank. Is the other side currently uninhabited?

I was starting to lean towards fin nipping, but it appears that he has the same redness on one of his pectoral fins?

Since it would be almost physically impossible to reach his pectoral fin for nipping, if he does have the same problem on his pectoral fin, something else is going on. if it started as nipping, it’s progressed beyond that now.

Personally, my fin damage first line of treatment is tannins via Indian almond leaves or plain, unflavored, rooibos tea, and SeaChem StressGuard.

The tannins have antibacterial and anti fungal properties and the StressGuard acts almost like a bandage to coat the damaged areas.
Rosemist was solo in the quarantine tank and later in the main tank until two days ago Snowy II was put back to the main tank.

His condition took a worse turn today. Now he sinks to the bottom of the tank and does not move.

Red dots also appear on pectoral fins. This looks more like fin rot. Since he is a new fish, he could have carried pathogens arriving in his new home. He only went through API General Cure treatment (without Maracyn and Ich-X, the combo Aquarium Co-op routinely used to quarantine new fish). With all the stress (new environment, early encounters with Snowy II, bitten fins from a fight, change to quarantine tank and then main tank, sudden pH change because of Equilibrium), his immune system weakened that diseases develop.

I have put him back to quarantine tank starting Maracyn and Ich-X per Aquarium Co-op routine.
Blue Vertebrate Water Underwater Fluid
Blue Water Fish supply Fin Underwater
1 - 4 of 7 Posts