I agree respect is mandatory but. because....
Fish keeping is a combination of art, and science its hard to weed out inexperienced opinion from facts.
In art, opinion is normal, and to be expected.
In science not so much, most info is quite cut and dried.
The problem comes in when, or if
10 experienced aquarist say a 50 gallon tank is too small for an adult oscar based on reality, but 1 or 2 inexperienced people voice the opinion that the tank is suitable, because its just fine after their 3 months as a fish keeper.
Is that opinion really valid?
And if a noob takes the advice of those 2 over the 10 without knowing background, the end result is often a disfigured, less than healthy oscar.
So to me, opinion is only valid when based on true experience, and scientific knowledge which is often not the norm on forums.
Sometimes it works the other way....
most freshwater aquarists have the "opinion" that protein skimming only works for salt water.
But is that opinion based on here say, or actual science.
Being a lab rat, I did experiments that proves it works just fine on fresh water, so mob opinion does not always make it right.
Below a video of protein skimming in my fresh water pond.
Anyone who has visited a waterfall like Niagara Falls, or Iguazu has seen it naturally occurring, yet it amazes me, how majority opinion can often be quite blind.
koi pond fractionation
Stanzzzz7
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