Solving Past Betta Deaths Out of Curiosity

bcfishtanks
  • #1
Hi, everyone,

I'm not asking about recent problems here. This is just out of curiosity. I'm wondering if, without pictures and parameters, we can solve some mysterious deaths of some bettas I had several years ago before I learned a lot about betta-keeping aside from feeding schedules and to condition the water. Of my four past bettas, two I know the cause of death (old age for my first one and complications after overfeeding for my third), but two still allude me. Let's see if we can crack the code.

Mystery #1: Bowie (Second)

The fact that Bowie died is not surprising. He was a 1 gallon bowl betta without a filter or heater. I did 100% water changes once a week. He liked no food that I got for him, and I tried 3 different brands. He started to get lethargic about 3 months into owning him. I got him a small heater, but it didn't help his lethargy. One day, I woke up and his dorsal fin looked completely knotted up. Not ripped. It had a literal knot/lump in it, and he was completely clamped. I did a lot of intense betta research (and there was more widely available at this time, 5 years after I had kept my first betta) and realized "Wow, bettas need a filter!" So, I got a two gallon tank - uncycled, of course - with no decor to get caught on and PimaFix (which had helped my first betta with cotton wool fungus several years earlier). It did nothing (obviously, since I didn't know what was wrong with him and PimaFix isn't good for bettas). Red lesions started appearing on his head, would scab over while he was asleep, and then would open again if he swam. I started doing daily water changes, which didn't help, and after two weeks since the knots in his tail started, he died literally right before my eyes.

I understand that poor water quality was the initial issue, but... doesn anyone know why he got knots in his tail and red lesions on his head?

Mystery #2: Oscar (Fourth)

At this point, I knew all about cycling and water testing. I had researched good pet stores, understood what meds were and were not good to use, had a filter and heater running... everything was great. I bought this beautiful marble koi plakat from my LFS (that had barracks for their bettas instead of cups... so cool). He had a massive head, and was friendly, beautiful, and healthy. His silver scales had started jumping, and I was really excited about this fish. And then he promptly got lethargic two weeks later and was dead within 12 hours. I had absolutely no idea what happened and was devastated. I nearly quit fishkeeping forever after that.

Obviously, I didn't, since I have a very successful 5g betta tank and 30g community tank now. But those two deaths still plague me. Any ideas on what could have happened to either of those bettas?

Thanks!
 
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Chewbroccoli
  • #2
The issues are many and very hard to solve at times. Even harder in your case because it's not happening now. But poor water quality has to be a main driver. Bettas are pretty hardy fish and can take a lot so for you to lose two means that the water must have been pretty average.

Regarding "knots" on the Betta I am not sure and have never encountered that before. I have a Betta in a heavy planted 5g tank and have not seen any of the above other then the occasional flashing off plants.
 
Rose of Sharon
  • #3
These are just guesses...

Bowie - lesions may have been hole in the head, or maybe due to ammonia poisoning. By knot, do you mean a bump, or a tumor, like lymphocystis (iridovirus)?

Oscar - could have been a quick acting strain of columnaris? For him, I would say there was something going on before you got him, possibly....
 
bcfishtanks
  • Thread Starter
  • #4
I was also wondering about hole in the head. And the lump was NOT lymphocystis, and it likely wasn't a fin tumor (can fish get tumors in their fins?). It looked like it got twisted up and never unraveled. I wish I still had pictures of it, but I had deleted them all after he died because it made me sad. Who knew that four years later, I'd be wanting to see them again?
The issues are many and very hard to solve at times. Even harder in your case because it's not happening now. But poor water quality has to be a main driver. Bettas are pretty hardy fish and can take a lot so for you to lose two means that the water must have been pretty average.

Regarding "knots" on the Betta I am not sure and have never encountered that before. I have a Betta in a heavy planted 5g tank and have not seen any of the above other then the occasional flashing off plants.
Yeah, I had never seen it before with bettas, and I have yet to see it again. He was pretty rough to start out with, seeing that he barely ate (and came that way from the store). My lack of fishkeeping knowledge at the time definitely didn't help. I thought I had bettas all figured out after my first one lived for five years. It's interesting what we think when we're young...
 
bcfishtanks
  • Thread Starter
  • #5
WAIT I found an old picture of Bowie by accident before he got really bad. Fin rot, likely columnaris, and his gills were swollen. I can't believe I looked at that fish so many years ago and was like "yeah he's fine!" Again, it's not secret that poor water quality was the underlying issue here.
 
applesandbananas747
  • #6
For Bowie, it sounds like hexamita (or hole in the head), because of the lesions, but the fin knotting stumped me. It might have been some odd case of fin rot or a tumor. For Oscar, I'm not too sure but it sounds like he might have had something before you bought him
 

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