Don't listen to anyone who says they are being mistreated. That simply is not true. Fish grow based on their environment. They probably grew to the size of the tank. You do also have to take into consideration what other fish are in the tank cause that will affect what size they will grow to as well. And, your shark is a catfish. I had a couple of these fish in the past.
2007-02-27 16:05:42
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answer #1
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answered by Stacy 2
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Iridescent Shark Lifespan
2017-01-15 03:30:19
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answer #2
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answered by Anonymous
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See here's the thing ideally you want the fish the size they would in the wild. This is easiest to see with goldfish and koi due to their hardiness. Fish that are stunted just flat out have shorter lives and are usually sicker for it (a goldfish can live 25 years and a koi over 100 how long do they end up living in a 10 gallon tank?). There is sexing info on pangasius in the included link but they won't ever breed at 1/8th of their wild size......
Info on iridescent shark aka pangasius catfish.
http://www.aquariumlife.net/profiles/asian-catfish/iridescent-shark/100117.asp
2007-02-27 17:19:23
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answer #3
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answered by Anonymous
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Thats because they're stunted from living in too small of a tank their whole lives...think about that. If you were forced to live in a small closet your whole life, it would stunt your growth. Would that be okay to do to you? I don't think so, and I absolutly hate the fish grow to the size of their tank thing. It stunts their growth, makes them more vulnerable to disease, causes painful organ compression and spinal bending, shortens their lifespan...I could go on. It's inhumane to house a fish with that kind of size potential in virtually anyone's home aquarium. I can't stress this enough, you have to research your pets thoroughly, fish included, because it's your responsibility to care for them in a humane way. If you keep fish, and you like keeping fish thats good, but they aren't just a decoration, they have needs and requirements like a kitten or a puppy, and it's no less wrong when you're cruel to a fish.
2007-02-27 17:03:12
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answer #4
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answered by brandi91082 3
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If fish fail to achieve their adult sizes it's because they are cruelly stunted by being forced to live in an environment not suited to their needs. Your "babies" are being mistreated if they are not growing at their normal rate. Do you think you would thrive if you were confined to a box that was less than your adult height? I'll bet that the person that told you the big lie about a fish growing only to fit their environment was the same one that sold them! Fish should continue to grow through out their entire lifespan,although not at the same rate. If you keep the water conditions clean and healthy your fish will continue to grow. If your fish are not growing then they are not "perfectly healthy". Please when you add fish to your collection,do the research first,and don't depend on seller's advice.--------PeeTee
2007-02-27 12:35:32
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answer #5
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answered by PeeTee 7
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I assume you know that your 'shark' is really a cat fish. You can't hope for much more than 8 to 10 inches. you can help by doing regular water changes, 20% once or twice a week, and get the water flowing vigorously with a good pump. These fish need strong currents.
2007-02-27 12:56:15
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answer #6
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answered by joedem633 2
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A fish's DNA has already pre determined its specific size, just as your DNA pre determined your height. Your iridescent shark has a predetermined size of up to up to 1 foot in captivity (not 4 feet. It will reach up to 3 feet in the wild, however). Properly cared for and allowed the room to grow, it will reach this size. If left in a small tank, its growth will be stunted. This is not a good thing however, as its organs continue to grow, it will be increasingly unhealthy, prone to a variety of diseases, and not live as long as it would have if it had the room to fully mature. Its good that your fish have lived as long as they have, but just keep this information in mind. Stunting their growth can be considered inhumane.
2007-02-27 12:26:53
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answer #7
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answered by Audrey A 6
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If you want them to get bigger get a bigger tank...they may have grown to the size of the tank and will not get any bigger....plus if you added another fish that decreases the space they all have to grow....i don't know how to tell weather they're male or female and im sorry to hear that people say to get ride of them if they are healthy i don't understand why they are saying that.....good luck and just keep taking care of them
2007-02-27 12:18:12
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answer #8
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answered by Rhylie and Paiyden 4
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They tend to only grow 6-12 inches inches in tanks.
2007-02-27 12:19:54
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answer #9
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answered by Anonymous
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If you love them then keep them. You are right, they grow to the tank...get a bigger tank or just stop expecting them to amount up to something that is not needed. Love them, that is all they need.
2007-02-27 12:31:59
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answer #10
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answered by Rachel H 2
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