On Friday, November 14, 2008, at 12:00 PM, gsas-member-request@thekrib.com wrote: > 4.5 watts per gallon with 2 year old bulbs Shango, if you haven't changed your bulbs in 2 years you dont have 4.5 watts/gal. anymore. That could effect/slow your vascular plant growth and therefore allow the black hair algae to increase. You may or may not know that, you cant completely get rid of any algae. All you can do is manage it. Clay Anderson _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member