bennyblee
Aquarium Advice Apprentice
Hello, hoping someone could lend an opinion on my CPDs.
Over the course of the past month, I have lost 2 CPDs and my last one is sick now as well. I had started with 6, but they seemed to shoal very happily with my neon tetras so wasn't planning on restocking. I lost the first three months and months ago, all looked like they were developing bent spines and wasting away. They all happened at different times, there had never been a time with multiple sick fish together.
This month, I had one again develop a bent spine, rather suddenly it seemed, and then was clearly in distress so I euthanized it, about three weeks ago. This past weekend, another fish CPD disappeared, which I discovered yesterday (my tank is in my office at work), and I never found it, despite taking everything out of the tank. My final CPD was looking beautiful and healthy yesterday, today it is hiding and I noticed a flesh-colored growth that seems to have appeared overnight. I have attached some photos, sorry not the best quality. The other CPDs that I lose never had any visible lesions, they would just suddenly look bent, stop eating, and die within a couple days-weeks. The only major difference I can think of is that I stopped adding a baseline amount of aquarium salt to my water changes, in preparation for adding some cory cats (currently in my quarantine tank). But I've only done one exchange so far to reduce the saline.
Any ideas what this could be? As I said I am not planning on restocking CPDs, I have had a lot of difficulty with these fish. For a long time I assumed it was inbreeding as I don't know why they would all individually get a bent spine, on their own schedule, with all other fish looking perfectly fine.
Unfortunately, I don't have a hospital tank, as my usual quarantine/hospital tank is currently quarantining some new fish (week 2) I was planning on introducing... Should I euthanize this fish to avoid whatever this is getting passed long to the new ones? Is it worth treating the main tank? For what?
Thanks! Further details below.
1~CPD. Skin growth/lesion, very sudden onset. Hiding and not eating.
2~0/0/10/76F/7.8 (all very stable)
3~ 20G high, set up almost exactly 1 year ago, finished cycling and stocked 10 months ago
4~HOB filter, unsure what kind/power but plenty of bubbles at the drop in, which is what I look for usually...
5~Only now 1 CPD (~1 inch) and 4 neon tetras, ~1.5 inches
6~Last water change and gravel vacuum was 4 days ago. I do this weekly, or every 2 weeks at the very least if I have a vacation where I am away. I usually do ~20-30% PWE each time.
7~Fish are all ~10 months of age
8~I have been slowly converting to a planted tank, I added a bunch of column feeders (java moss, bacopa, various java ferns).
9~Rotate between Omega One color mini pellets and Fluval tropical flakes. Have recently started adding some Omega One Marine small pellets into the mix as I am adding some cory catfish (currently in my quarantine tank), and my LFS recommended these for the cats.
Over the course of the past month, I have lost 2 CPDs and my last one is sick now as well. I had started with 6, but they seemed to shoal very happily with my neon tetras so wasn't planning on restocking. I lost the first three months and months ago, all looked like they were developing bent spines and wasting away. They all happened at different times, there had never been a time with multiple sick fish together.
This month, I had one again develop a bent spine, rather suddenly it seemed, and then was clearly in distress so I euthanized it, about three weeks ago. This past weekend, another fish CPD disappeared, which I discovered yesterday (my tank is in my office at work), and I never found it, despite taking everything out of the tank. My final CPD was looking beautiful and healthy yesterday, today it is hiding and I noticed a flesh-colored growth that seems to have appeared overnight. I have attached some photos, sorry not the best quality. The other CPDs that I lose never had any visible lesions, they would just suddenly look bent, stop eating, and die within a couple days-weeks. The only major difference I can think of is that I stopped adding a baseline amount of aquarium salt to my water changes, in preparation for adding some cory cats (currently in my quarantine tank). But I've only done one exchange so far to reduce the saline.
Any ideas what this could be? As I said I am not planning on restocking CPDs, I have had a lot of difficulty with these fish. For a long time I assumed it was inbreeding as I don't know why they would all individually get a bent spine, on their own schedule, with all other fish looking perfectly fine.
Unfortunately, I don't have a hospital tank, as my usual quarantine/hospital tank is currently quarantining some new fish (week 2) I was planning on introducing... Should I euthanize this fish to avoid whatever this is getting passed long to the new ones? Is it worth treating the main tank? For what?
Thanks! Further details below.
1~CPD. Skin growth/lesion, very sudden onset. Hiding and not eating.
2~0/0/10/76F/7.8 (all very stable)
3~ 20G high, set up almost exactly 1 year ago, finished cycling and stocked 10 months ago
4~HOB filter, unsure what kind/power but plenty of bubbles at the drop in, which is what I look for usually...
5~Only now 1 CPD (~1 inch) and 4 neon tetras, ~1.5 inches
6~Last water change and gravel vacuum was 4 days ago. I do this weekly, or every 2 weeks at the very least if I have a vacation where I am away. I usually do ~20-30% PWE each time.
7~Fish are all ~10 months of age
8~I have been slowly converting to a planted tank, I added a bunch of column feeders (java moss, bacopa, various java ferns).
9~Rotate between Omega One color mini pellets and Fluval tropical flakes. Have recently started adding some Omega One Marine small pellets into the mix as I am adding some cory catfish (currently in my quarantine tank), and my LFS recommended these for the cats.