- Have you tested your water?
- Yes
- If yes, what is your ammonia?
- 0
- If yes, what is your nitrite?
- 0
- If yes, what is your nitrate?
- <5
- If I did not test my water...
- ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.
- Do you do water changes?
- Yes
- What percentage of water do you change?
- 81-90%
- How frequently do you change your water?
- Every two weeks
- If I do not change my water...
- ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
So this one has me stumped…
Long story short, after the addition of 2 cories from petsmart (not quarantined - pretty sure this will teach me my lesson for quarantining fw fish), all of the neon tetras started dying one by one (as well as the cories) over the course of the past few days.
The tank is a 20 gallon planted tank. The centerpiece is 3 dwarf puffers, but there is (was) a neon tetra school as well as neocardina. The puffers get aggressive, but generally leave the tetras and shrimp alone. Nothing was changed for almost a year until the cories were added.
One of the cories was looking rough and died a few days after introduction, and then the tetras started dying. They go from fine to dead in less than 20 minutes. The fish break off from the school, start to lose color, and swim weirdly before dying. The bodies aren’t really consistent, some have a lot of redness near the vent, others are thin, but others have no apparent signs whatsoever. The school was 15+ and now only 5 are left. The puffers seem totally fine.
Given the variety in how things die, I can’t really pin what the issue is. I’ve never come across something that kills like this, especially so fast. I doubt it’s microsporidians/neon disease, as they lack any of the associated symtpoms.
I started treating with kanaplex and prazi as a means of controlling most bacterial or worm issues and the deaths seemed to slow down. My other thought is a viral disease that affects characins and cats (but not puffers apparently).
2 examples of deceased fish:
I know if I save the rest, it would probably be more luck than anything else, but I’m curious to see if anyone has any ideas what this could have been for further prevention.
Long story short, after the addition of 2 cories from petsmart (not quarantined - pretty sure this will teach me my lesson for quarantining fw fish), all of the neon tetras started dying one by one (as well as the cories) over the course of the past few days.
The tank is a 20 gallon planted tank. The centerpiece is 3 dwarf puffers, but there is (was) a neon tetra school as well as neocardina. The puffers get aggressive, but generally leave the tetras and shrimp alone. Nothing was changed for almost a year until the cories were added.
One of the cories was looking rough and died a few days after introduction, and then the tetras started dying. They go from fine to dead in less than 20 minutes. The fish break off from the school, start to lose color, and swim weirdly before dying. The bodies aren’t really consistent, some have a lot of redness near the vent, others are thin, but others have no apparent signs whatsoever. The school was 15+ and now only 5 are left. The puffers seem totally fine.
Given the variety in how things die, I can’t really pin what the issue is. I’ve never come across something that kills like this, especially so fast. I doubt it’s microsporidians/neon disease, as they lack any of the associated symtpoms.
I started treating with kanaplex and prazi as a means of controlling most bacterial or worm issues and the deaths seemed to slow down. My other thought is a viral disease that affects characins and cats (but not puffers apparently).
2 examples of deceased fish:
I know if I save the rest, it would probably be more luck than anything else, but I’m curious to see if anyone has any ideas what this could have been for further prevention.
