I set my 55gal up a week and a half ago with a bag of live sand and 50lbs of live rock. The only test I did was with the Hydrometer and let it run. I read some where that when you have brown algae covering everything that is a good sign? Well as of yesterday that what I have. I can't seem to find that article as of yet so I need to know what do I do now? Any help would be greatly appreciated. I want to add another 25lbs of live rock but when is a good time?