Personally, I am no the wiser as to how efficient these device are.
I understand how UV light at certain intensities over a certain period of time may effectively neutralize a given percentage of unwanted pathogens or at least stop them multiplying. However most hobby grade UV units are very crude pieces of equipment used in turbid environment. In my opinion and with limited knowledge the science and the maths just don`t` add up. As I understand, for the pathogens in an aquarium to be directly exposed to the UV without shielding by other particles they would need to be in finely pre filtered water, as in drinking water sterilization units.
That said I suppose they is no harm in trying, surely it can only help matters, just a matter of doing some research before you buy and temper one's expectations.
I would also be interested if any microbiologists on the forum may be able to explain to me if all common aquarium pathogens spend their lifetime suspended in the water column. Or do some observe a more benthic existence. In which case, their exposure to the UV clarifier could be very limited.
To UV or not to UV, that is the question
"Whether 'tis nobler in the mind to suffer
The slings and arrows of outrageous" pathogens,
"Or to take arms against a sea of troubles
And by opposing, end them. "
Our dear, Will Shakespeare, RIP
Very interesting write up
@vetteguy53081 , well detailed, thanks for sharing.
Best wishes from across the pond.
