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Oranda Dorsal Fin

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Has anyone had an Oranda that can't seem to keep his dorsal up. I've seem some whose dorsal seem to be totally erect while others are not . Is it a muscle issues the can be helped with higher proteins?

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have you seen it up at all? I always thought their dorsal move depending on their moods ;) like down means sad or unhappy,and up means happy excited...I may be wrong,and your fish may have a broken or disabled dorsal,i'm sure someone will be along asap to help you out,a pic would be helpful as well :)

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A video would be helpful, as well as more information on the fish and tank. I have the D&D checklist linked in my signature, if you wouldn't mind filling it out.

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I've had this fish since it was a baby. It's always been this way, sometimes up and sometimes down. I've had several tanks and stocking levels since then. Now I have 75 gallon. with 4 ranchu and 1 oranda. Two of the ranchu were added this week. I have fluval fx6, and with the additional ranchu I added a fluval 106. I also have a 24 watt uv sterilizer. I try to get a vid and sheet filled out.

I was just wondering if this was normal or not.

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  • * Ammonia Level(Tank)0
  • * Nitrite Level(Tank)0
  • * Nitrate level(Tank)10
  • * Ammonia Level(Tap)
  • * Nitrite Level(Tap)
  • * Nitrate level(Tap)
  • * Ph Level, Tank (If possible, KH, GH and chloramines) 7.5
  • * Ph Level, Tap (If possible, KH, GH and chloramines)
  • Other Required Info:
    • * Brand of test-kit used and whether strips or drops?api
    • * Water temperature?72
    • * Tank size (how many gals.) and how long has it been running?75
    • * What is the name and "size of the filter"(s)?
    • * How often do you change the water and how much?2 weeks 100%
  • * How many days ago was the last water change and how much did you change?today
  • * How many fish in the tank and their size?5
  • * What kind of water additives or conditioners?prime
  • * What do you feed your fish and how often? Repashy and purple hikari hikari boolworms
  • * Any new fish added to the tank?
  • * Any medications added to the tank?
  • * List entire medication/treatment history for fish and tank. Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.
  • * Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus?no
  • * Any unusual behavior like staying at the bottom, not eating, etc.?no

As I mentioned before its always been this way, just wondering if I can correct this or not. 

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To me, the dorsal looks like it is very heavy. It's not something that will be fixed, IMO, since you say it has been this way since it was a baby. As an indicator of the fish's health in the future, try looking to see if the ventral fins are clamped.

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Your fish are all beautiful and love your tank setup.

I remember when I was deciding between two Blue Oranda's at RainGarden that I really liked, but was only purchasing one of them,Steve was helping me with my decision.  He had told me that one of them had a nicer wen but not as strong of a dorsal and it had a tendency to flop and something about the fins being thinner.  I don't remember his exact words but something along those lines.  The 2nd fish had a much stronger dorsal and fins that were thicker but the wen wasn't at the growth that I wanted.  I picked the fish that had the nicer wen with the weaker dorsal.  As I look back on my decision (going on two years, I think) I understand better what Steve was talking about because I don't see my Dexter with his dorsal up all the time.  It just looks thin.  I love him regardless and I think he's still a beautiful Oranda.  

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Thanks for the help and compliments. I remember reading something similar a while ago ,just can't remember where. Oh well I still like my fish as well. Again thanks.

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My tele has a long narrow dorsal that is always folded over, unless the water current lifts it up. When that happens it looks all out of proportion :teehee

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Interesting.  :hummm Most of my fish have the folded over dorsal fin. I've often wondered if it was like what happens to orca whales in captivity.(like the whale from Free Willy) :hide:

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