I decided to get started on the 135 gal. tank that has been sitting for over a yr in my living room empty. (personally I thought the kids would come back and get it) So we have decided on fish and some decor. I like the fake drift wood and the plants (somewhat) but the rocks I am not sure about they are Meesquabuck thin flagstone. I am still trying to get my Ph up and I am still researching if these are pulling it down. Any suggestion about what I am doing wrong or right? The filter is Rena xP4,we have a powerhead,and 2 heaters. As soon as I figure out how to post pics I will.