Interesting read. Lots of good info in there, which I know I will dedinately take into conasideration when feeding next
I am unsure as to whether tank bred lines of fish will retain the ability to go without food for a sustained period of time. I can see the relevancy for those with wc or F#. But do you think there comes a point when fish which originate from lines of tank breeding require their food more frequently because they lack the 'natural' behaviour or instincts?
If this is the case, surely underfeeding becomes a factor. If a fish of tank bred linniage requires more food more frequently and it only recieves what its wild counterparts would eat, is that not underfeeding? Does that make it animal cruelty?
I have recently got some F1 Andinoacara stalbergi, and they are very shy and will not indulge on food. They will tend to eat in small dosages and only what they need. Whereas, many of the other fish I have kept, for example Kribensis, (which were bred by a friend from a TB line) would eat until they popped given the chance. This gives me reason to beliece that fish which are wc or decendants of those that are will not eat in as large quantities anyway. Although that isn't conclusive proof, and granted they would eventually associate me with food and begin toeat in larger quantities. But I think they would respond much better to the lack of food than any tank bred specimins would.
As for the 99% of people over feeding. I can't see the reasoning behind this. Have the people who undertook the research visited everyone who owns fish to check out their feeding regimes. Most definately not, so although I agree that the vast majority will overfeed (compared to the wild), I believe it to be much less than 99%.
Just my 2c.