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Discussion Starter · #1 ·
So i was over my friends house and we noticed her betta fish has this spore like growth on his tail, it looks super fuzzy and she said in general his tail looks droopier too. pics attached


2 Posts
Discussion Starter · #3 · (Edited)
How many gallons is your tank? 10 split between two fish (5 each)
Does it have a filter?yes
Does it have a heater?yes
What temperature is your tank?72-80
Does your tank have an air stone or other type of aeration?no
Does your Betta have tank mates? What kind? tank split into two sections, betta on other side

What food brand do you use?aqueon
Do you feed flakes or pellets?pellets
Freeze-dried? blood worms occasionally
How often do you feed your Betta? How much? 3-4 pellets a day

Before your Betta became ill how often did you perform a water change? every other week
What percentage of water did you change? 25%
What is the source of your water?tap water filtered thru britta
Do you vacuum the substrate or just dip out water?used turkey baster to suck up excess food left behind
What additives do you use? What brand of conditioner?topfin water conditioner

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.

pH: 7
Hardness (GH):unsure
Alkalinity (KH): she's unsure

Symptoms and Treatment:
When did you first notice the symptoms?today
How has your Betta’s appearance changed? tail looks droopier, "spore" like thing on tail
How has your Betta’s behavior changed? has become lethargic, doesn't react when you go near his tank (he used to) or when food is put in
Is your Betta still eating? yes but not as much
Have you started treating your Betta? If so, how?no
Does your Betta have any history of being ill?no
How long have you owned your Betta? about 7 months
Was he or she ill or suffering some sort of damage when purchased?no


Super Moderator
2,832 Posts
Hi, luckily, he doesn't look too bad (hopefully it hasn't gotten worse)

Can you get him into a hospital tank?
I would start with a fungus cure (Jungle's fungus eliminator) available at most pet stores. Follow the instructions on the box, but you'll need to do daily water changes on his tank. The water changes should help him take care of the underlying issues.
While I wouldn't start with it yet, keep an eye out for antibacterial medication that you can get (Kanaplex is highly recommended) but hold off until you see how he does. I don't like medicating fish when they can take care of the issue themselves.

Next you need to increase the maintenance on his tank.
You need to keep the temperature of the tank more stable in a narrower range. You want to aim for 78 - 82 degrees and keep the fluctuations to a minimum. Dropping to 72 degrees too long or frequently will compromise his immune system.
You also need to increase the water changes. For the long term, aim for 50% change at least once a week with a gravel vacuum. For the short term I would do deep clean of the tank with a gravel vacuum and 50% twice a week for a couple of weeks.
Unless you have especially bad water, there's no need to run it through the Brita first. I don't believe that Brita filters out the necessary minerals for them, but I haven't run through the charts for it. If you live in the US (this is why we like to see a location in your profile, we're not stalking you), regular tap water in most areas is safe for fish.
I would also make the change in his water conditioner to Seachem Prime. It deals with chlorine, chloramines and some of the contaminants in the water. It also helps neutralize any ammonia and nitrites for a short time.

Lower on the priority list, when you're buying new food for him, I'd get Omega One, New Life Spectrum or NorthFin pellets for him.

What is happening is his immune system has become stressed and compromised, he may have gotten a little bacterial infection and the fungus is attacking the dead tissue. Once you improve his water conditions and eliminate the fungus, he should be able to handle the rest himself.
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