Fuzzy spots on angelfish tail

[Griev]

Can I get some help IDing this? Looks like it might be fin rot? Any treatment tips? They're currently in a QT tank with rocks and coral but I can remove the rocks and coral.

 

[vetteguy53081]

Common on many angels, appears to be lymphocystis. It is viral and rarely spreads to other tank mates.
it comes commonly from poor water quality and/or diet. Can be water from fish store. With good diet and water quality offered, this stuff will fall off on its own.
What test kits are you using?

foods:
LRS fish frenzy
Mysis shrimp
Spirulina brine shrimp
Formula 2 flake and frozen
Small plankton

Add selcon vitamins and garlic extract to the foods for stamina and immunity health

 

[Jay Hemdal Verified Community Expert]

Can I get some help IDing this? Looks like it might be fin rot? Any treatment tips? They're currently in a QT tank with rocks and coral but I can remove the rocks and coral.

You indicate multiple fish are affected, can you post pics of them? This could be Lymphocytis, but it isn’t a typical presentation, the spots are small and more numerous. If it is Lymphocytis, it will go away on its own in 4 to 8 weeks.
Jay

 

[Griev]

There's one other fish that looks near identical with similar markings on it's tail and top fin. There's one other fish with a legion near it's jaw, which matches the description of Lymphocytis. Going to add selcon, time, and more water changes to make sure the water quality stays solid.

 

[Griev]

All five angelfish died and I'm at a bit of a loss and could use some help troubleshooting.

Day 0: Received the 5 new angelfish and temperature/drip acclimated them over an hour or so
Days 1-7: All angelfish except the one with the jaw legion were doing well and feeding on frozen. I noticed the spots that were continuing to grow/spread and posted this thread on day 6.
Day 8: Found the angelfish with the legion on it's jaw dead, the 4 remaining I tried to feed with selcon soaked freeze-dried plankton, but there was barely any feeding response
Day 9: Found the remaining 4 angelfish dead in the morning
Day 12: Found the Algae Blenny dead. This fish had been in the tank eating like crazy for weeks prior to adding the angelfish.

Other Livestock: Also in the tank are multiple snails, a cleaner shrimp, a golden torch colony, and a few frags of blue sympodium soft coral.

Medications: I did not run any medications other than the one attempt at feeding selcon soaked plankton.

Parameters: I've got an ammonia alert badge on the tank and it's showed "safe" the entire time. I've also tested for Nitrates/Phosphates, but they're typical. Salinity is 35ppm/1.026 as measured with a refractometer (checked against Trident calibration fluid).

Equipment: Skimmer, carbon in a bag in the return, heater, return pump.

The vendor has agreed to give credit for the angelfish, but is insisting it was my fault. They claim that no disease would kill all five of the fish within such a short period. I'm not sure that I agree with their assessment, but I wanted to reach out to the experts here to make sure I didn't make a mistake.

I'm planning on re-ordering once I can get my 200 gallon display tank plumbed and running and move all the corals and inverts (and seeded rock/filter floss) over. I've got paraguard and cupramine ready to add at the first sign of trouble.

Is there anything else I can investigate? Curious as to other people's opinions on potential causes of the fish deaths other than disease.

 

[Jay Hemdal Verified Community Expert]

All five angelfish died and I'm at a bit of a loss and could use some help troubleshooting.

Day 0: Received the 5 new angelfish and temperature/drip acclimated them over an hour or so
Days 1-7: All angelfish except the one with the jaw legion were doing well and feeding on frozen. I noticed the spots that were continuing to grow/spread and posted this thread on day 6.
Day 8: Found the angelfish with the legion on it's jaw dead, the 4 remaining I tried to feed with selcon soaked freeze-dried plankton, but there was barely any feeding response
Day 9: Found the remaining 4 angelfish dead in the morning
Day 12: Found the Algae Blenny dead. This fish had been in the tank eating like crazy for weeks prior to adding the angelfish.

Other Livestock: Also in the tank are multiple snails, a cleaner shrimp, a golden torch colony, and a few frags of blue sympodium soft coral.

Medications: I did not run any medications other than the one attempt at feeding selcon soaked plankton.

Parameters: I've got an ammonia alert badge on the tank and it's showed "safe" the entire time. I've also tested for Nitrates/Phosphates, but they're typical. Salinity is 35ppm/1.026 as measured with a refractometer (checked against Trident calibration fluid).

Equipment: Skimmer, carbon in a bag in the return, heater, return pump.

The vendor has agreed to give credit for the angelfish, but is insisting it was my fault. They claim that no disease would kill all five of the fish within such a short period. I'm not sure that I agree with their assessment, but I wanted to reach out to the experts here to make sure I didn't make a mistake.

I'm planning on re-ordering once I can get my 200 gallon display tank plumbed and running and move all the corals and inverts (and seeded rock/filter floss) over. I've got paraguard and cupramine ready to add at the first sign of trouble.

Is there anything else I can investigate? Curious as to other people's opinions on potential causes of the fish deaths other than disease.

As I said, this wasn't a typical-looking presentation of Lymphocystis, and indeed, that would not have killed all of the fish so fast. Five angelfish in one tank added at one time seems risky to me. Genicanthus are peaceful, but what were the other species?

It probably is not a water quality issue, else you would see some issues with the invertebrates.

Fish can have multiple disease issues - so if it was Lymphocystis, they very easily could have had a second infection. The main one I would be concerned about is Amyloodinium, velvet. However, it has two very obvious symptoms - rapid breathing and fish swimming into water currents. Did you see that?

Selcon has no medicinal benefits, it is a long-term dietary aid, suppling essential fatty acids. There is no benefit from feeding this over the short term.

Ultimately, this was very likely a protozoan infection - velvet or possibly Brooklynella. You'll need to keep fish out of that tank for at least 45 days, and better yet, 75 days.

I would strongly urge you to consider a comprehensive quarantine protocol for your new fish going forward.

Jay

 

[Griev]

As I said, this wasn't a typical-looking presentation of Lymphocystis, and indeed, that would not have killed all of the fish so fast. Five angelfish in one tank added at one time seems risky to me. Genicanthus are peaceful, but what were the other species?

The only other fish in the tank was the algae blenny. I observed no aggression between the angels, and I observed them quite a bit.

It probably is not a water quality issue, else you would see some issues with the invertebrates.

Fish can have multiple disease issues - so if it was Lymphocystis, they very easily could have had a second infection. The main one I would be concerned about is Amyloodinium, velvet. However, it has two very obvious symptoms - rapid breathing and fish swimming into water currents. Did you see that?

I did see some rapid breathing a day or so before they died, but rather than swimming into water currents they became more reclusive and hid in the rockwork more often than free swimming.

Selcon has no medicinal benefits, it is a long-term dietary aid, suppling essential fatty acids. There is no benefit from feeding this over the short term.

Ultimately, this was very likely a protozoan infection - velvet or possibly Brooklynella. You'll need to keep fish out of that tank for at least 45 days, and better yet, 75 days.

I would strongly urge you to consider a comprehensive quarantine protocol for your new fish going forward.

Jay

I believe you're correct. Thanks for your perspective.