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Results 1 to 7 of 7
  1. #1

    Default Got a fin nipper

    0 Not allowed!
    In the last couple of days, one of my juvenile female guppies has all of the sudden become a fin nipper. She is about 4 months old and was born in the tank.

    Not exactly sure why all of the sudden she decided to become a fin nipper all of sudden, but is actively nipping the other juveniles (sisters) and have gotten 2 of my celestials. I saw her latch onto one of the other juveniles a few minutes ago.

    None of the other fish (threadfins, cory's, rice) have any damage so I'm not sure if she just hasn't bothered with them yet or not.

    I am at a loss as to why after all this time she has decided to become a fin nipper. She isn't doing all the time, just kind of starts and stops.

    Water is 0-0-20
    50 Gallon -
    Endlers | Guppies | Blue Eyed Rice | Celestial Pearl Danios | Threadfin Rainbows | Bronze Cory's
    Albino Cory's | Nerite Snails | Ghost Shrimp

  2. Default

    0 Not allowed!
    I sure don't know why that would suddenly start to happen...but I'd sure be nervous having a nipper (sounds like a pitbull) around those beautiful threadfins of yours!

  3. #3

    Join Date
    Oct 2013
    Frozen Wastes of the Upper Midwest

    Awards Showcase

    Asking good questions, keep it up! - Slaphppy7 Congrats on the tank move - Slaphppy7 Thanks for being the 2000th poster on the 40B! - Slaphppy7 Thanks for the B-Day wish - Strider199 Here's to one crummy Superbowl, lol! - Slaphppy7 
    T.G.I.F.! - Slaphppy7 Stay warm!! - DeboraBremner Here's to good friends, and new fish! - Slaphppy7 T.G.I.F.! - Slaphppy7 Happy Easter! - Slaphppy7 
    Hey FT, haven't seen your mug around here lately.  Hope everything's ok! - KevinVA 


    0 Not allowed!
    Was there any new fish added recently to the tank? One of my juvi mollies turned into a sudden fin nipper the day after I added my pearls, I had to isolate in the time out net until my 10 gallon was done cycling 2 days later,
    Current tanks:
    37G FW - 3 Pearl Gourami, 4 Black Mollies, approximately 20+ Molly Fry, 5 Assassin Snails | 10G Planted FW - 14 Molly Fry, rocks, DW and an Anubias Nana - journal
    "We come from the land of the ice and snow" | "I reject your reality and substitute my own" - Adam Savage | What part of "Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn" don't you understand?
    How to cycle without fishies!

  4. #4

    Join Date
    Jan 2009
    A little further from sanity

    Awards Showcase

    Thanks for the rep!! - Compass this doesnt look like pie... not the right kind.. - Sandz for providing solid guidance to others - RiversGirl Thanks for the rep! :) - Compass cheers - Fishhook 
    Using up my winnings on my friends! - Compass No Message - Fishhook beeeeeeeer! - Sandz Bottoms up! (even though you don't drink, lol) - Slaphppy7 We miss you... - Compass 
    thank you for the filter! - RiversGirl for the fun game! - SeaLady Thank you very very much!! - Compass Love the games. Thank you :) - rebecca_finny TGIF! - showmebutterfly 
    Thanks for your help & points. - metweezer Nice to see you around again. enjoy the pie - fishmommie Thanks! :) I try! - Compass Happy Christmas! - Slaphppy7 Thanks so much for everything. - metweezer 


    0 Not allowed!
    Even peaceful fish have a "pecking order". As fish age they start to show dominance or submission. Once the hierarchy is settled she should calm down, provided there is enough room and hiding places in the tank for all the fish. Removing the offending fish for a bit and rearranging the tank will sometimes help to curb aggression.
    When I go fishing I just place a sharp rock in the water and sit there waiting for all the dead fish to float to the top... Kingfisher
    Everything Happens for a reason. Sometimes that reason is you are stupid and make bad decisions.
    I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
    Rules: If you bend them long enough they turn into loopholes and you can walk right through them.

  5. #5


    0 Not allowed!
    It's been several months since any fish were added. The funny part is that she doesn't go after the adult female guppies, just her sisters and the celestials. I can almost understand the celestials as they are the smallest fish, but she doesn't chase any fry or endlers.

    Maybe it's just her way of showing dominance. I'll give it a few days to see if she settles down. If she doesn't, she may have to get rehomed. She got the 2 celestials good and chewed half their tails off. The other juveniles guppies just got a good rip.
    50 Gallon -
    Endlers | Guppies | Blue Eyed Rice | Celestial Pearl Danios | Threadfin Rainbows | Bronze Cory's
    Albino Cory's | Nerite Snails | Ghost Shrimp

  6. Default

    0 Not allowed!
    Try rearranging the tank in a way that gives enough hiding spots for fishes.. this may curb aggression.

  7. #7


    0 Not allowed!
    She seems to have stopped, at least for time being (no aggression yesterday or so far today). Rearranging is a good idea, I'll try that.

    Maybe she was finding her place in the tank or maybe the male endlers were driving her nuts and she decided to take out her frustration on the others. There doesn't seem to be a rhyme or reason for action or why it has now stopped.
    50 Gallon -
    Endlers | Guppies | Blue Eyed Rice | Celestial Pearl Danios | Threadfin Rainbows | Bronze Cory's
    Albino Cory's | Nerite Snails | Ghost Shrimp

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