The tank has LR from a person who was breaking down their 300g. I have 2 Green Chromis, 1 Domino Damsel, 3 Sand Sifters, 3 Lettuce Nudibranch, 1 Coral Banded Shrimp, Red legs hermits, Blue leg hermits, Emerald Crabs, 1 Brittle Starfish, and or course snails.
As for filtration I am running an...