Pszemol wrote:

And it really does not matter if you have tanks for 25 years or 2 months.
Scientific method is much more important in judging how UV affects ich.

Observation is the single most important tool in the scientific method, and, in
most sciences, it is the only tool. Nearly everything we know about this world
has been learned purely by observation.

I suppose you regard the fact that the Earth revolves around the Sun as
"anegdotal evidence or wishfull thinking?"

George Patterson
If you torture the data long enough, eventually it will confess
to anything.