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Oranda suffering from lesions and black fins


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  • Regular Member


    Test Results for the Following:
  • * Ammonia Level (tank): 0.25 ppm
  • * Nitrite Level (tank): 0 ppm
  • * Nitrate level (Tank): 15 ppm
  • * Ammonia Level (Tap): ~0.1 ppm
  • * Nitrite Level (Tap): 0 ppm
  • * Nitrate level (Tap): 0 ppm
  • * Ph Level, (Tank) (If possible, KH, GH and chloramines): 8.0
  • * Ph Level, (Tap) (If possible, KH, GH and chloramines): ~7.4
    Other Required Info:
  • * Brand of test-kit used and whether strips or drops? API drops
  • * What is the name and "size of the filter"(s)? Tetra Whisper 20gal
  • * What kind of water additives or conditioners? Tetra AquaSafe
  • * Water temperature? 75*F
  • * How often do you change the water and how much? ~30% once a week

  • * How many days ago was the last water change and how much did you change? yesterday, ~5gal
  • * Tank size (how many gals.) and how long has it been running? 20gal, 1 week but upgraded from established 10gal
  • * How many fish in the tank and their size? 7 (was 8 until yesterday), avg size 2in (not fat, they're babies)
  • * What do you feed your fish and how often? Aqueon sinking pellets once daily plus some veggies
  • * Any new fish added to the tank? 1 when I upgraded
  • * Any medications added to the tank? Some Furan-2 last week, but it should be filtered out by now
  • * List previous issues experienced (dropsy, SBD, etc.): nitrogen-cycle shock
  • * Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus? fish that just died had major fin-fray, oranda has lesions and black fin tips getting worse, white ryukin has a few small red veins in tail, another fantail gets floaty sometimes
  • * Any unusual behavior like staying at the bottom, not eating, etc.? the fish that just died was bottom-sitting but the others are fine, appetite seems decreased
  • * List entire medication/treatment history for fish and tank. Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.: treated for Ick a few times in old tank, Furan-2 recently
  • * You can really help us to identify with the concern more accurately if you post some pictures and a short video.

Ok guys, I know my tank is still overcrowded even after my upgrade, but a bigger tank is not an option right now. I just want to reduce stress on my fish until I can upgrade again. My oranda is the one I'm really worried about. He's been the most sensitive to ammonia/nitrite from the start.

AB4C3611-F103-4B0A-A077-613ABF615143-11741-0000057EDEF1AB1D.jpg

19E072A9-CFF0-4B26-A139-DC8988198F68-11741-0000057EE1EAE810.jpg

This Butch the oranda. Not sure why the 2nd pic is upside down. I think this is due to some kind of ammonia or nitrite poisoning. The test readings are pretty good now, but this is residual from the old smaller tank. I wanted to try a salt bath but I'm not sure how (I also have 3 apple snails).

Thanks!

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  • Regular Member

Black fins and areas are burns that are now healing. They will disappear over time just maintain perfect water quality. (ammonia 0, nitrite 0, nitrate under 20) Test your water daily and change the amount of water you need to keep these levels. No more than 50% at a time :)

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  • Regular Member

Black fins and areas are burns that are now healing. They will disappear over time just maintain perfect water quality. (ammonia 0, nitrite 0, nitrate under 20) Test your water daily and change the amount of water you need to keep these levels. No more than 50% at a time :)

oh I thought black fins were the burns? well that's good, he's almost healed then! what about the lesions, though? those are newer...

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  • Regular Member

I can't see the lesions you are referring to from your pics. With an overcrowded tank your bacterial and parasitic load could be overpowering your fish that are getting weakened by ammonia and nitrite exposure. The furan 2 would've messed with your cycle bacteria. Can you thin your tank population?

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They look like scabs on the side, you can see the black a little bit in the first pic. He's missing patches of scales there, too. The furan-2 actually made it worse? UGHH. No, I can't thin the pop cuz I don't have anywhere to put the others. My numbers seem to be pretty good though, right? They should be ok if I keep them like that, right?

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  • Regular Member

You may want to try to rehome a few then. 20 gallons is really only appropriate for one goldfish. Lots of issues come up from overcrowding the tank, having that many fish you are taking that risk.

The black on the side of the fish looks like it's from ammonia burns. As for keeping your water clean so this fish will continue to heal I see you have 0.25 ppm of ammonia in your tank. You'll want to do a water change to get that number to zero :)

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Ok, thank you! Yes, I know it's wayyyy overcrowded and I have major guilt about it! :unsure: But I will try to get that NH3 down so they can be as happy as possible for now!

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  • Regular Member

Could you at least return the 1 fish you added when upgrading since you haven't grown as attached to it yet? 7 fish in a 20 gallon is really risking a lot with your fish health wise. Not only will it hinder the healing from the burns and cause more issues, but it could possibly stunt your fish as well :(

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would it be possible to get a filter for the 10 gallon and have 2 tanks? You'd still be overstocked but that would give you 50% more water volume . . . . :idont

The 10-gal still has the filter it came with. I suppose I could set that one up at my house and move a few fish (I live in a college dorm and only have space for one tank). How would I go about moving fish safely to that tank again? Could I use water from a water change of my 20gal to start a cycle up in the 10 gal? And how many fish (and which ones) would you suggest I put in the 10 gal?

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