<a href=showthread.php?s=&postid=11330609#post11330609 target=_blank>Originally posted</a> by copps
That's a good question Jeremy, but keep in mind that there are many other variables other than temperature that keep fish in a niche... I've spoken to many people about this, and some believe it's competition that keeps some of these deep water angels deep, and not temperature... Fact is though that Frank has been able to keep his offspring at slightly higher temperatures than wild... again he's meticulous with this stuff... and this has been documented in many other fishes that have been bred in captivity.
If they usually occupy a deeper niche due to diet, competition, etc., then this TOTALLY DISCOUNTS the claim that wild interruptus cannot be kept at warmer tank temperatures? This is interesting. I have never kept an interruptus, but I have heard they need to be cool, otherwise they dont thrive, by many people who I respect their opinion. I guess this is totally untrue.
Species of fish have been known to live in both deep and shallow water habitats like Bandit Angels in HI.
While I do not discount this whatsoever, this has nothing to do with what I was referring to. My point is simply this- we cannot make the claim that a species of fish requires conditions A because it is wild caught, and could require conditions B is it is a F1 captive-
Especially when conditions B would be detrimental to survival of a wild caught animal. Biology does not work this way. It appears that this was the claim that was being m,ade about the interruptus- wild ones will die at 78 degrees, while captive ones will thrive. I dont think this is accurate. If I have misquoted, or misunderstood, I apologize.
There is no doubt that captive bred animals will fare ebtter in the aquarium than wild caught animals as a generalization. They ahve a much better advantage in ability to accept aquarium fare, conditions, and techniques. However, I DO NOT agree that captive breeding these fish makes them more resilient to significant condition changes. For example, wild fish that are not considered reef safe- I do not belive the captive bred ones will be miraculously reef safe. Perhaps less likely to pick at inverts, but one (or two, or 5) generations of captive breeding will NOT eliminate the instict to forage for a instictual food source. Case in point, Copps' mention of his lemon peel. There is a slew of other biological concepts which also apply to this model, but I wont bore anyone anymore with my claptrap, or hijack this anymore.