Giesemann bulbs have tested well in studies I have read. I can't say they are my favourite Bulb company but they are by no means crap. My only con towards them is the dead spots near the End pins other then that they have worked well for me. I have seen others tanks who have had success with them as well. I only suggested them because they are fairly cheap and easy to come by in canada. Ati and aquascience are probably better choices.
|