Husband and I have talked for years about getting a saltwater tank. We finally took the plunge and bought a 220g tank and are on our journey. As of now (day 15) we have had some brown growth that bloomed then quickly died out, and now have bright green covering LOTS of our rock. We have 4 hydro power heads and a sump/refuge. Waiting on a neptune system and our protein skimmer to arrive to be installed. Ammonia levels spiked and are down to .5. Not sure what else I need to share......any and all advice is welcome!!!