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UV Steriliser in a planted aquaria

tubamanandy

Member
Joined
28 Feb 2013
Messages
362
Location
Thornton, Lancashire
Recently spotted several UV sterilisers for freshwater aquaria when I thought these were generally the domain of outdoor ponds etc.

Any benefit of these things in a planted aquarium with fish ?
 
Just thought it was strange starting to see products from large companies becoming available for indoor freshwater aquariums and not sure why.....unless its simply a commercial reason
 
UV is highly effective in eliminating Green Water Algae (GWA). It is also used as a prophylactic in the tank as data have shown effectiveness against certain free floating pathogens but it is very difficult to quantify the effectiveness. As mentioned by Edvert, it will not save you from silly mistakes. It is also at odds with the general requirement for high flow of a highly lit CO2 injected tank. In that case it should be employed on a separate low flow water circuit because it's effectiveness depends on the exposure time (referred to as "Dwell Time") of the radiation on the pathogen.

Cheers,
 
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