I've only been running my second saltwater tank for 6 months and the first only ran for 4 months before I had to move. The thing I learned in that short amount of time is that diversity is key. If you have 10 different strains of algae try to consume finite nutrients, one will not be able to take over. Sure for most of the 6 months my tank has been ugly to most eyes and would probably have people freaking out. In fact I kinda freaked out because I didn't have to clean my glass for a week. I thought something was wrong but I had patience and waited it out. Now I'm back to cleaning the glass every other day.

