BioCube Mini UV Sterilizer 5W (mfg# 15640)
BioCube UV worked for me.
I had a major algae bloom in my BC 29. I couldn't even see through the tank. The water was just a green cloud for about 3 weeks. It came from nowhere, my water parameters were perfect and my cardinalfish and corals were as healthy as ever. I tried lots of different things, including water changes and that didn't help. The algae cells just kept reproducing in the new water, so finally I bought the BC UV. Ran it for about 36 hours and it was still green, but I did one 5 gallon water change and notice about a 75 percent improvement. Was going to do another 5 gallon water change the next day, but by then the water was crystal clear.
I believe what happened was that the algae cells were either destroyed or "sterilized" so they can't reproduce any more. Than my water change pulled most of it out and the filter caught the rest.
This UV did the trick and was easy to install.
February 13, 2014
Perfect for my 29 Gal Nano.
This UV sterilizer is made to fit my 29 Gallon Nano. I had version one before and it worked great until the bulb burnt out. Looking forward to checking this one out.
January 20, 2014
Easy to use...
Easy to install in minutes in my 29 gallon Biocube. Water looked clearer in a day or two. No new algae blooms on my glass. Bad thing is now I'm having to supplement my snails with algae/seaweed! A must have for every Biocube owner.
June 27, 2013
I own a nano cube 24 (jbj) with corals and fish. About 4 months after setting up my tank, I was having a really difficult time keeping my glass clean from algaes and keeping my water clean. No matter how hard I tried, they would come back within 3 days after performing my regular weekly water changes(about 20%) and my water would be cloudy again.
These UVS combined with Chemi-pure & Purigem were the answers I was seeking for!
My corals and fish seems to not mind the changes to the water perimeters and now I have changed my water change schedule to twice a month or less.
December 3, 2012