Mirror Mirror On the Wall, What's the Color Of It All?
Ok, so this is a newbie question. I have a newly establish marine tank. It is fish only and it has a 75 gallon capacity. The nitrites have just finished dropping to normal levels. For the past several weeks we have been seeing a fair amount of rust colored "stuff" on the bottom of the tank and on the ornaments. We assume that it's algae (the tank has been running for 6 weeks). Lately, we have a new color showing up. It's an irredescent pink! Can I assume this is algae too? If so, any cause for concern? I know marine tanks take a long time to completely cycle, hence my reason for asking. Thanks!