Sep 30, 2018 #21 Firemanreefkeeper Active Member View Badges Joined Jun 29, 2018 Messages 369 Reaction score 443 Location SW Florida Rating - 0% 0 0 0 For just a few corals you can probably use water changes. If you start filling up the tank then you are going to have to test.
For just a few corals you can probably use water changes. If you start filling up the tank then you are going to have to test.