Quote:
Originally Posted by DNA
I bought a high quality 80W Deltec UV and installed it two weeks ago.
It's treating around 200 g/hour (750 lilters/hour)
This has changed:
More algae on the glass.
Slight increase in dinoflagellates.
Big increase in cyanobacteria.
Miniscule increase in water clarity.
The reason I did not do this earlier is that I had no faith in it, but I had to try.
I'll run it for three months to be sure and then probably remove it.
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Another week of UV has passed.
The algae on the glass is about the same as last week.
Dinoflagellates have increased somewhat, but it's hard to tell since....
Cyanobacteria has taken over and covers most of the sand and parts of the rocks as well. I've seen plenty in the past, but this is a new reckord.
Water clarity has decreased since the water column is packed with cyanobacteria.
At the moment UV seems to be having negative effect on my tank and definitely not doing anything to reduce the dino menace.