some like to use that type of product, others just let it happen naturally. I'm of the latter opinion, but it won't hurtReef Flowers Bacteria Feeder
That falls into the category of chasing issues. A new tank will have a diatom bloom, algae blooms, etc...again, I'm of the opinion that you just let it happen, you're generally not going to be able to stop that kind of thing. I never siphon my sand bed.. Literally, ever.should I also siphon the sand, as it's gone a little brown?