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fighting diamond sharks

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  • 17-04-2009 12:25am
    #1
    Package
    Banned (with Prison Access) Posts: 1,322 ✭✭✭


    hi all

    ok,,, i have a 120 ltr aquarium with 28 fish, 6 of which are sharks. i have two lovely diamond sharks which ive had for about 8 months. they are big and strong and insperable. i bought 4 new fish the other day and introduced them to the tank, 2 days later, 3 of them were dead, and one of my diamonds was on his last legs, floating upside down.

    so i took him out, put him in a smaller bowl and nursed him back to life, then introduced him back to the tank. all was well for a few hours untill i realised the other diamond bullying him,. chasing him round the tank and hitting off him.

    its a bit worrying, is it normal? does he sense a disease or weakness of the guy who was dying?

    what can i do to stop this?


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    #2
    Fishyfreak
    Registered Users Posts: 576 ✭✭✭Fishyfreak


    By Diamond Shark do you mean "Tinfoil Barbs" ? Do a quick Google Image search and ley us know.

    Tinfoil barbs grow huge, in fact I wouldn't even consider 6 of them in a 300ltr tank. They are very boisterous fish and I image they are getting cabin fever by being couped up in such small quarters.

    Your tank isn't capable of sustaining these fish so I would recommend that you either do a significant upgrade or try rehoming them.

    28 fish in a 120ltr may well be overstocked (depending what the fish are obviously). Can you give us some more detail of the tank, tankmates, filtration and we can hopefully point you in the right direction.

    Also, the deaths of newly introduced fish is often a telltale sign of poor water quality in the tank. The existing fish have grown accustomed to high nitrates/nitrite/ammonia but new fish simply cannot cope and die. People often say "it's a bad batch of new fish" but it simply isn't the case. Do you test your water, if so what are the results.


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    #3
    Jimkel
    Closed Accounts Posts: 590 ✭✭✭Jimkel


    A diamond shark isnt a tinfoil Barb Fishyfreak, although its an honest assumptionto make as they arent very common. Even though they have become freely available in the trade. they are another barb Hypsibarbus wetmorei AKA the lemon finned barb. Another big barb, 18 inches ultimate size I think.

    To the OP, It could be mating or males fighting. I recommend googling Lemon finned barb for more info.


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    #4
    Fishyfreak
    Registered Users Posts: 576 ✭✭✭Fishyfreak


    Jimkel wrote: »
    A diamond shark isnt a tinfoil Barb Fishyfreak, although its an honest assumptionto make as they arent very common. Even though they have become freely available in the trade. they are another barb Hypsibarbus wetmorei AKA the lemon finned barb. Another big barb, 18 inches ultimate size I think.

    To the OP, It could be mating or males fighting. I recommend googling Lemon finned barb for more info.

    I guessed Tinfoils just because I've never seen Lemon Finned Barbs in the shops. Either way the tank is grossly overstocked.


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