I started a cycle on my new tank using one raw shrimp on 8/1 and I've been testing the ph, ammonia, nitrites and nitrates every couple days. The ammonia went up to about 1ppm and on 8/9 I started to see some brown algae on rocks and sand. My nitrites were .50ppm and nitrates were .50ppm. The brown algae was gone after about three days. I tested today and my ammonia is at 0, nitrites is 0 and nitrates looks to be about 1ppm. I started cycle with live sand, dry base rock and raw shrimp. My question is am I on the right tack? Should my ammonia have been higher? Is there anything I should do? Water change?