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Results 1 to 7 of 7
  1. #1

    Question Notorious Nippers???

    0 Not allowed!
    Who are the notorious nippers of the freshwater aquarium world?

    I had this experience with black mollies and do not want to repeat that mistake. Please add your list of notorious fin nippers. As always, thanks in advance for your help!
    "The manner with which we walk through life is each man's most important responsibility, and we should remember this with every new sunrise."
    --Thomas Yellowtail, CROW

  2. #2


    0 Not allowed!
    There's few real nippers, a lot of cases of nipping are low numbers and bad combinations.

  3. #3


    0 Not allowed!
    Very true. But there are some species that are well known for doing it if they are kept in low numbers (and get boored). Many of these species are tetras and barbs. The two most well known species might be the tigre barb and the serpae tetra.
    Do as I say. Not as I do.

  4. #4

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    0 Not allowed!
    If kept in sufficient space, sufficient decor and sufficient numbers then nipping should be kept to a minimum. However I would agree serpaes can be bad for nipping occasionally.
    My therapist says I need a bigger tank . . . . .

  5. #5


    0 Not allowed!
    Agree with what has been mentioned. And the issue of numbers is critical, as the only (to date) true scientific study has proven.

    Several species of fish, including angelfish, various tetras, and others I can't remember, were placed in tanks and provided identical conditions (for the species). Overwhelmingly, when numbers were below five of the species, increased aggression was noted. With species that tend to be nippy, such as the Serpae Tetra and Tiger Barb already mentioned, this nippiness was highly increased. But even with otherwise peaceful fish, there was an overwhelming tendency with low numbers to fin nip and display increased aggression. The naturally-inclined nippy fish need larger groups; many suggest 8, but others of us suggest 12 or more for these species. This is more likely to confine the nippiness (which we must understand is part of the fish's programmed temperament, and not something that can changed) to within the group.

    Tank size also has been shown to play into this; the same fish in sufficient space will be significantly less aggressive than fish in smaller spaces.

    All of this is what many of us have known or surmised for years, but it is nice to now have the scientific data to prove it.

    Another aspect of this is environment. Inappropriate water parameters for the species is now known to increase aggression by causing stress to the fish. The wrong aquascape does the same; fish requiring hiding spots must have them, or they are stressed. Stress weakens the fish, but the aggression is believed to result because it is the only way a fish can fight back. Though sometimes, a fish will take the opposite tact, and become so shy and frightened it refuses to eat and wastes away.

    And of course, one should never "bait" a fish that is naturally a bit feisty to start with. Angelfish, gourami, inded most all cichlids (aside from the rift lake) should never be combined with certain species of fish, since this is like waving a red flag in front of a bull. The afore-mentioned Serpae Tetra for instance if kept in large groups of say 12 in a large tank may be fine, but put in an angelfish and things change.

  6. #6


    0 Not allowed!
    Got a link to that Byron?

  7. #7


    0 Not allowed!
    Quote Originally Posted by talldutchie View Post
    Got a link to that Byron?
    Yes, it was in Practical Fishkeeping, here is the online article:


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