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Results 1 to 10 of 10

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  1. Default Need helP on discus behavior.

    0 Not allowed!
    Ever since I planted my aquarium and added co my dominant discus has been stretching his fins like sails infront of the other discus. Also the others have started pecking eachother. What is wrong with my discus? My ph is around 6.2-6.4. Nitrites close to zero. Ammonia is zero. Temp is 29 celcius. Could it be the beginning of a breeding couple!??

  2. #2


    0 Not allowed!
    Even though they cannot compare with green terrors or jack dempseys, your discus still are cichlids. Fin flaring is a way to look bigger and intimidate or impress other discus. Pecking at one another is a way fish establish a hierarchy.
    Nothing is wrong with your fish. A breeding pair will hang out together and direct their aggression at other fish.

  3. Default

    0 Not allowed!
    +1 to madagascariensis, they're just reestablishing the pecking order, this is fairly common after changing the aquascape. Keep an eye on the pecking to ensure it doesn't get out of control, your parameters are perfect.

  4. Default

    0 Not allowed!
    Thank you for the quick replies! I will keep an extra eye on them.

  5. #5

    Join Date
    Aug 2010
    Jacksonville, FL

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    0 Not allowed!
    Yeah +1 - its just pecking order behavior

  6. #6


    0 Not allowed!
    And you meant the nitrAtes are near zero ... right?

    By changing the tank, the fish are recreating their territories so some aggression is normal.
    Knowledge is fun(damental)

    A 75 gal with eight Discus, fake plants, and a lot of wood also with sand substrate. Clean up crew is down to just two Sterba's Corys. Filters: continuous new water flow; canister w/UV, in-tank algae scrubber!! Finally, junked the nitrate removal unit from hell.

    For Fishless cycling:

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