Convict Cichlid With Half-black Face

Discussion in 'Freshwater Fish Disease' started by Biev, Feb 9, 2018.

  1. Biev

    BievValued MemberMember

    It's so weird! I have a male convict whose face just turned completely black overnight, but only on the right side. Even his eye is almost black! The rest of his body still looks normal, it's just this one section... I've never seen this before. I mean sometimes their faces get a bit darker than the rest of their bodies when they're under stress, but this is extreme! Does anyone have experience with this? Do I have an extremely quirky fish, or can this be a symptom for something?
    IMG_7679.jpgIMG_7681.jpgIMG_7683.jpgIMG_7688.jpg

    Background details:
    • Male-only, species-only tank
    • 40 gallon, ~10 males, ~4" average (this is our holding tank for small males), no agression noticed
    • Treated for columnaris last month (water still appears a bit yellow despite numerous water changes); all symptoms cleared
    • NH3 = 0, NO3- = 60, NO2- = 0, GH: 180+, KH: 89.5, pH 7.2, temp: 25.6
    • No recent changes
     
  2. david1978

    david1978Fishlore VIPMember

    That's a first for me too. I bred them for about ten years and the only thing I ever noticed was they would fade when they got overcrowded.
     
  3. chromedome52

    chromedome52Fishlore VIPMember

    I've seen it many times, on multiple species of fish. It is some sort of nerve damage, which is why it only occurs on one side. Sometimes it goes away, sometimes the fish stays like that and lives a normal life, and occasionally the fish dies early.
     
  4. OP
    OP
    Biev

    BievValued MemberMember

    Thank you! That makes perfect sense.
     




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