Vallisneria Posted November 17, 2005 Report Share Posted November 17, 2005 Well i have another question i have always wondered about :smokey: What makes a fish hardy? You always hear people saying certain fish are hardy or delicate but what is different about those fish. What makes a zebra danio so much more hardy then say a discus? I can understand if a fish is wild caught it would be more delicate because its not used to tank conditions and would be stressed but what about tank raised. Is there something different in their anatomy that makes some fish hardier then others? I hope that made sense Quote Link to comment Share on other sites More sharing options...
ronrca Posted November 17, 2005 Report Share Posted November 17, 2005 My first thought would be tolerance to ammonia/nitrite/nitrate lvls perhaps. Then there's temp and ph swings. How about more resistant to pathogens to add some more thoughts. Good question! Quote Link to comment Share on other sites More sharing options...
Vallisneria Posted November 17, 2005 Author Report Share Posted November 17, 2005 My first thought would be tolerance to ammonia/nitrite/nitrate lvls perhaps But what makes one fish more resistant then the other? Quote Link to comment Share on other sites More sharing options...
RD. Posted November 17, 2005 Report Share Posted November 17, 2005 (edited) Jeeze Val, you're having some rather deep thoughts lately. That's a difficult question to give a definitive answer to, but I guess the general answer would be genetic make up. Some species have advanced over thousands of years with fluctuating conditions in water parameters, diet, etc, and they have learned to adapt to a wide range of conditions, hence they usually tend to be easier to keep in captivity. Edited November 17, 2005 by RD. Quote Link to comment Share on other sites More sharing options...
dunl Posted November 17, 2005 Report Share Posted November 17, 2005 Some species have advanced over thousands of years with fluctuating conditions in water parameters, diet, etc, and they have learned to adapt to a wide range of conditions, hence they usually tend to be easier to keep in captivity. So just think....if anything does survive the pollution in Lake Victoria, in a thousand years it will be indestructible. Glowing, maybe, but indestructible. Quote Link to comment Share on other sites More sharing options...
jvision Posted November 17, 2005 Report Share Posted November 17, 2005 But, what if you don't believe in evolution, and that all animals were created at the same time??? Then what makes a fish hardy or delicate?? Quote Link to comment Share on other sites More sharing options...
dunl Posted November 17, 2005 Report Share Posted November 17, 2005 But, what if you don't believe in evolution, and that all animals were created at the same time??? Then what makes a fish hardy or delicate?? Uhmmmm, nothing I guess, except the way they were created? Not sure if the evolution vs. creation debate was where Val wanted this thread to head off to..... Quote Link to comment Share on other sites More sharing options...
jvision Posted November 18, 2005 Report Share Posted November 18, 2005 Not sure if the evolution vs. creation debate was where Val wanted this thread to head off to..... Yeah.... I was just kidding about that. After I posted, I thought this might stir something up that really doesn't need to be debated here. Quote Link to comment Share on other sites More sharing options...
Vallisneria Posted November 18, 2005 Author Report Share Posted November 18, 2005 Jeeze Val, you're having some rather deep thoughts lately Thats what happens when your bored :smokey: Quote Link to comment Share on other sites More sharing options...
Cap'n Posted November 18, 2005 Report Share Posted November 18, 2005 But, what if you don't believe in evolution, and that all animals were created at the same time??? Then what makes a fish hardy or delicate?? Duh! Aliens, of course! :bang1: Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.