
I have no idea what I introduced to my aquarium but it is killing every single one of my beloved fish. Ammonia, nitrite, nitrate is all zero. Temp is 78. It's a planted 75. My female bettas died, my male guppy. My pearl gourami is coughing constantly and now my beloved albino corydoras is gone with no warning until today.
I bought a handful of sterbai and peppered corydoras from my local fish store and everything went to hell afterward. What have I introduced and how do I stop it??
Please help me, almost every fish I named has died and I'm at a breaking point.
Posted by VanJurkow
12 Comments
I am so sorry this happened to you. I don’t have any advice, I just wanted to reach out and bump up the post.
I wish you the very best.
omg im so sorry. idk but commenting hoping it’ll bring more ppl here
Honestly no clue. Maybe some kind of chemical contamination? Personally I would start with large water changes and add activated carbon filters.
This sucks im sorry its happening to you,
I would setup another dish bucket whatever asap and transfer any fish out of that tank untill you know what is happening,
I would say something came in with the new attations but im sorry i dont know
How long have you had the tank?
Oodinium/Piscinoodinium The symptoms fit.
Can you send a sample of your water to a near aquarium store? Maybe they can check other parameters? Maybe take a video of the whole tank and show it to them? I’m sorry I wouldn’t know what to do other than that.
Your nitrates shouldn’t be 0? Unless you do very very frequent water changes I feel like there should always be some nitrates.
There was another poster a while back who said the same thing, turns out he wasn’t shaking the test liquid/didn’t follow the instructions properly and he did the test again and his nitrates were through the roof.
Just thought I’d mention this if this could be the answer.
If all the fish die simply restart the aquarium, leave the water without oxygen for a while so that the bacteria do not survive, then buy biological accelerators and a fish maybe the gourami… add fish little by little and before putting in the main aquarium leave it in a pot or smaller aquarium as quarantine and see if the fish show signs of disease
Asked chatgpt
Red eyes and skin in aquarium fish often indicate serious, life-threatening bacterial infections (hemorrhagic septicemia/Aeromonas) or severe environmental stress from poor water quality, such as ammonia poisoning. Immediate action includes testing water parameters, performing water changes, and treating with aquarium-safe antibiotics.
AquaInfo +2
Common Causes and Symptoms
Hemorrhagic Septicemia (Red Pest): Bacterial infection causing blood-red blotches on skin, fins, and eyes.
Ammonia/Nitrite Poisoning: Crimson red, inflamed, or burned-looking patches, often following stress.
Physical Injury/Stress: Red eyes, often appearing or disappearing, sometimes caused by bullying or bumping into décor.
Poor Water Quality: High ammonia (>5 ppm) or high CO2 (>40 ppm) can lead to red, bloody skin.
Looks like the fish has red pest? Im not a pro, but want to think with u.. sorry and goodluck with it.. you should call the store you bought the fishes from if they had any problems aswell
What test kit are you using?
This is either water quality like ammonia or a bacterial infection causing hemorrhage.
Try using Marcyn 2
How long did you quarantine the new fish? Long enough to know they didn’t introduce anything?