I also think there is a tendency towards dogmatism to beware of as well. I've only been on this forum a short time, but the number of times I have seen people asserting that something simply "won't" or "can't" work, to then have many people contradict it with their experience is astonishing. It's becoming an expectation of mine here.
While it is true that there are certain situations that are highly unlikely to result in success (perhaps a full grown oscar and guppies being long term compatible?), others seem as though people hear something from a "trusted" source and take it as unassailable fact. For example, pH tolerances of many fish seem much higher than people give them credit for. I've already contradicted, and likely irked some in doing so, that Endler's can't be kept with tetras because of the difference in preference for hardness and pH. I've kept these two together. They both did well. It leaves me wondering where dogma like this arises. Can we trace its origin? Probably not. But I do wonder what drives some of the dogmatism I see. It's interesting and I'd like to understand that better.
Excellent point!
I think a lot of it depends on personal circumstances and surroundings.
For example:
2 people on this forum (or internet) have African Cichlids.
-one of them is serious pro hobbyist, with years of experience. Has tank set up for lake Malawi PH, hardness, etc. Buys fish from reputable sources or raises their own
- 2nd one is beginner/semi-pro that buys African Cichlid from fish store. That Cichlid spent their life from egg to bag living in water that has nothing to do with lake Malawi. Just like many generations of their ancestor.
The last ancestor of their's that lived in lake Malawi water parameters might be comparable as me and my ancestor in Africa from 200,000 years ago.
That fish will probably die or have hard time adapting to lake Malawi water parameters and be quite happy in the same water as Guppies and Tetras; And have no benefit of being aclimatized to lake Malawi conditions due to stress and aclimatisation strain. Although their offspring born in pro hobbyist lake Malawi replica tank, might thrive better in lake Malawi paramaters and die and witter in the water African Cichlid I buy from the shop lives happily in.
Something I have contemplated and heard quite a few people say on YouTube, forums, articles in my research.
Keep in mind I'm a newbie and my theory is just theoretical contemplation as I have not tested it.
But it is logical and supported by anecdotal evidence from different fields. Like evolution, adaptability, etc.