Ok I said I was new.... I was waiting and waiting for messages in my mail box. I have a tank that was between 6-9 months old I have had for 2 months (we moved it from one side of san antonio to converse every drop of water with it) its 75g. I have some live rock with it 20lbs or so. I found a box of shells, corals, sand dollars, and 2 coral disks forgot what thier called also drift wood. I got the box years ago at a good will it was jammed full and was $2 bought them to decorate with but never did. Was just wondering if I could add some of the stuff since my tank looks kinda bare. So I don't have any "rock" but have seen some in diffrent stores. I have one big sandstone (I think) that came with the tank was told that corraline alge would not grow on but its turning purple. Also in the last week or so I have been getting some green alge in the tank is this normal? ok? I added more lights and was thinking that thats probably why.

Thanks for all the advice its verry much appricated!!!
Armywife