Good afternoon, everyone! My name is Bertha, and my husband and I are new to this hobby. We set up our tank in January. In September, my husband and I visited Aquarium Art, and we were amazed by the store and everyone’s professionalism. I have a question for Gavin: What nitrate level do you keep in your coral tank? Ours is currently at 6, but I’m curious to know what level you maintain in your tank because my bubble coral was not doing good and I removed it and take to Hugo’s tank. Thank you.