algee

I have gone threw my cycle already and everything was looking find intel today where i noticed that brown alegee started growing on my sand bed. I am currently not using Revers osmosis water so im using tap which i know its bad and i am still waiting for my sump supplies to come in so i just...

hey guys i am building a small sump and need some guidence, was hopng to get some build threads that i can look at or any desighns. i am using a small (fits my stand) 20w x 10l x 18t with this im hoping to be able to store most componets and maybe a small refugeum. Any ideas or thoughts whould...

I found this (see attached Picture) brown disk algee on some of my live rocks. this is the largest but there are other smaller. I have tried to scrape it off but it is stuck on pretty well. can anyone help me identify it please and let m know how to get rid of it. tahnks for your help