Yes, I use tap water. My Ph is low but I tried crushed coral and nothing changed but my GH. I've thought about getting some more plants or some moss balls. I do use easy carbon so I'm not sure how that would interact with the moss balls. Since I read in Aquarium co-op they are a form of algae. My pearl weed in the picture I just added is when I first got it. It was so green. Now it has some browning but also some growth. It's my first tank so I'm at a bit of a learning curve. I wish I could add a snail to help with the little algae I do have but my Ph is low. I'd rather work with the water parameters I have than try and do extra steps to my tank maintenance.