OK I'm in week three of cycling my tank getting it ready for live stock. I had brown spots form on the sand in the tank said it was normal. Cool had green algae start to pop up in the sand also brown spots are going away or at least not as dark as before. Now I see green algae starting to pop up on some of the rocks and a few pieces of hair algae I guess also. Did a water test. Sal. 1.022 Ph 8.0 Ammon 0 Nitrate 0 and nitrate 5.0 . Is this still a normal part of cycling the tank or should I do a water change? Is it time to start adding some type of clean up crew. Is it ready for it's first fish??? Thanks in advance