No I did not get the chance to see them in action (check out where I live). My 2 bulbs were getting close to the 8 month mark and really I just wanted to try something new and decided to give it a go. My reasoning being that most - and I say most - German products that I have tried out have been very high end quality stuff - it is why I am going with the Bubble King skimmer and the Grotech calcium reactor for my new tank. I definately notice more yellow in these bulbs but my livestock is reacting well - particularly my clams which are open more than I have ever seen them.
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