Have you ever ran into a disease that wiped out all your fish?

I believe that the fish major thing that wiped out one of my tanks when I was starting with either Ich or it possibly was something else in the form of a parasite.

As far as cleaning, I used a ton of vinegar, magic erasers, and water to clean it fully out. Then I setup new filter media, and let the tank run through a cycle for a month and half.

By then anything that was there is surely dead without any hosts available.

I think mine was some type of parasite that kills all of my fish in like a week.

My first tank, everything died within a short span of time. But I never figured out what killed them.

Fogerty12 said:

My first tank, everything died within a short span of time. But I never figured out what killed them.

Wow, that's so sad and a horrible experience. Did you later had another courage to start again? Some would give up completely.

When I was younger, I had a 30 gallon tank I believe it was that had a mix of different fish. One of them came down with ich and I did not treat it fast enough. Everything died but the one goldfish that was in the tank.

Li0nFish said:

When I was younger, I had a 30 gallon tank I believe it was that had a mix of different fish. One of them came down with ich and I did not treat it fast enough. Everything died but the one goldfish that was in the tank.

That's a pretty badass goldfish.

Yes. I remember back in 2019 I bought two goldfish for my kids as they had been asking about having goldfish again as we had them previously when they were a lot younger. I remember getting them and within a few weeks they had passed, and I never worked out what caused it. I did everything I should have done to ensure the water and the tank were as they should be for the fish, and we still lost them. We fully cleaned out the tank to prevent any further issues if they had died from a disease and then bought more and did everything by the book again but after a few weeks they died again. I truly believe it was a disease but to this day I still don't know what killed them.

Once a friend of mine told me that some of his fishes were infected with velvet disease and it killed almost every fish, thankfully he was able to identify it sooner and save some of his fishes.

It's a very painful experience for anyone. Luckily, i didn't had to face that situation. I regularly see my aquarium and watch the fishes. If any fishes are feeling sick would isolate them and keep them in separate tanks. If needed would add antibiotics to the tank and would change the water also. So till now, am having thriving aquarium with healthy and active fishes.