So I have had my tank setup for a week now. I bought live rock and live sand from tampa bay saltwater. They literally packed it in morning and shipped it to me airmail. I picked it up from Southwest Airlines about five hours after they sent it. About five days ago I didn't have any sign of ammonia so I started ghost feeding mysis and rods reef. Today I came home to brown algae covering about a quarter of my live sand and same on rocks. I tested for phosphate and it showed it at 1. I know this is high so I installed a gfo reactor. Can someone help me understand how I am getting a diatom bloom without ever having any cycle or ammonia.
Thanks!
Thanks!