7.5 gallon nano tank. Simple filtration, 7 Pacific oysters ( not all oysters created equal), little dry rock, right now one skimmer on only daytime.
Going on 90 days. Other system 120 gallons has 60 Pacific oysters over 1 year 6 months. See video to get an idea of setup.
https://www.instagram.com/p/CH8K1gvjI0E/?igshid=ujrt3214yhhq