Could this also be cause by phosphates in the water, for example phosphates in fertilizers leach into the water shed after fertilizer is applied in lanscaping applications, and cause localized algea blooms in the ocean. I think the same goes for aquariums which use tap water where phosphates levels are higher opposed to different water supplies . So essentially algea is the same as any land plant in the sense the phosphates in fertilier will impact and influence growth in both the similarly. I believe you should test for phosphate if tap water is used in your tank, if so from what I've heard so far is that tap water is advised against in reef tanks because of impurities like phosphate, and other heavy metals that may also be present that can eventually build up to toxic levels caused by water changes while using tap water. If I'm correct using tap water could cause larger diatom blooms during start up tank cycling but also in the long term cause other algea problems, weaker coral skeletal structure, and a toxic overload of heavy metals that could kill off a reef tank. So if your using tap water you should discontinue using it , and start to do water changes with purified ro or ro/di water that could be purchased at a aquarium supplies store. Or you can get a reverse osmosis ,ro filtration system of your own and filter the water yourself where you live. Can anyone colaborate with me on this because I would like to know as well if this is true what ive heard.
Thanks Steve
