Bump On Danio Head?

  1. chloep123

    chloep123 Valued Member Member

    Hi guys,

    I was just feeding my 4 zebra danio when I noticed that my rescue one (Lucy, the one missing an eye) has a large lump on her head/back. My mum said she had noticed it there a while ago and thought it was just where she was growing old, should I be worried? She has been behaving totally normally.

    I have (hopefully) attached a video and a bad quality photo, but they move so fast!
    They are due a W/C on Sunday, and if need be I will double check all the test results but last time I looked (last Saturday) they were 0ppm ammonia, 0ppm nitrites, and just below 20ppm nitrates. The temperature is approximately 26*C, and its my 20 litre tank (gosh... right after I post this I need to update my tank information, it's not accurate any more).

    Thanks guys!

    35201871_2039425999432055_8615241381121622016_n.jpg upload_2018-6-14_11-25-25.png
  2. Crafty Cichlid

    Crafty Cichlid Valued Member Member

    keep the water clean, and monitor for now. I've seen this in fish that didn't have enough swim space, but it could just be scoliosis. Hard to tell.
  3. OP

    chloep123 Valued Member Member

    Thank you, will do. Would you say she didn't have enough space then, and that's actually a possibility? I thought that tank size was alright