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Fin rot and flashing during quarantine


bennyblee
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Hi everyone, hoping for some basic guidance regarding my SAE, which has starting flashing and developed some mild fin rot during initial quarantine.

10 days ago I brought home 2 nerite snails, 5 amano shrimp, and 1 young siamese algae eater from my LFS to stock my newly established planted tank. They went into my 10 gallon quarantine tank. It is my first time using this QT, I got it used but it was nuked with bleach several months before the tank was filled and then I cycled with using a fish less cycle with a 20 gallon sponge filter. The water had been in there for a couple months but I did a 50% water exchange to freshen it before adding.

I treated using the quarantine trio. Since my display tank is also brand new, I moved my snails and shrimp over to the display after 1 week without any issues, they are doing great. At that time, I had planned to move the SAE as well but I noticed just the beginnings of a bit of fin rot along the bottom edge of the tail. I did a 50% water change and added 1 tablespoon/3 gallons of aquarium salt, hoping to treat it with salt alone. As soon as I added the salt, my SAE started flashing like crazy. I had not noticed it flash at all during the earlier part of the quarantine.

After 24 hours of incessant flashing, I assumed the salt was too high so did a 40% water change. 24 hours later, the fish was still flashing very frequently. I did another 50% water change and at this point (last night) decided to start treatment with a full course of Paracleanse and Maracyn. I do not see ich or any visible lesions on the fish other than the fin. He is scouring the tank looking for algae to eat and will nibble on bits of algae wafer I drop into the tank.

Parameters:

Ammonia, Nitrite 0, Nitrate <5, pH 7.8, temp 76F, dkH 3, dGH 7.

Does anyone have any additional thoughts? Am I missing something here?

Thanks,

Ben

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Hi Colu, no rapid breathing, weight appears fine, continues to eat and graze frequently. Other than in his fits of flashing he looks perfectly fine. He spends half his time resting on or in the gap under the sponge of the sponge filter, then will come out to do frequent rounds of the tank to see if there is any algae on any of the surfaces he's missed, interspersed with sudden fits of violent flashing. I really had thought that the salt was just really irritating and that is what precipitated it, but at this point after my water changes the concentration should be down to less than 1 tablespoon in the entire 10 gallon tank so I feel like its impact should be negligible. I didn't think that the mild fin rot would explain flashing behavior so am worried I am missing something.

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On 2/7/2024 at 3:43 PM, bennyblee said:

Hi Colu, no rapid breathing, weight appears fine, continues to eat and graze frequently. Other than in his fits of flashing he looks perfectly fine. He spends half his time resting on or in the gap under the sponge of the sponge filter, then will come out to do frequent rounds of the tank to see if there is any algae on any of the surfaces he's missed, interspersed with sudden fits of violent flashing. I really had thought that the salt was just really irritating and that is what precipitated it, but at this point after my water changes the concentration should be down to less than 1 tablespoon in the entire 10 gallon tank so I feel like its impact should be negligible. I didn't think that the mild fin rot would explain flashing behavior so am worried I am missing something.

What I would do is three course of paracleanse two weeks apart with the violent flashing you described just to rule out a parasitic infection

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On 2/7/2024 at 10:02 PM, Colu said:

What I would do is three course of paracleanse two weeks apart with the violent flashing you described just to rule out a parasitic infection

Thanks, agree that I should plan to treat empirically for parasites. Can you clarify, did you mean two courses of paracleanse three weeks apart? And any reason to not add the salt back to the regimen since it clearly wasn't the issue?

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On 2/9/2024 at 2:54 AM, bennyblee said:

Thanks, agree that I should plan to treat empirically for parasites. Can you clarify, did you mean two courses of paracleanse three weeks apart? And any reason to not add the salt back to the regimen since it clearly wasn't the issue?

With paracleanse you want to do three full course of treatment on week 1 week 3 and week 5 you could add a small amount of aquarium salt 1 table spoon for 5 gallons that will aid Gill function and add essential electrolytes 

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On 2/8/2024 at 9:57 PM, Colu said:

With paracleanse you want to do three full course of treatment on week 1 week 3 and week 5 you could add a small amount of aquarium salt 1 table spoon for 5 gallons that will aid Gill function and add essential electrolytes 

Gotcha, thanks for the helpful advice!

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