400litre tank with skimmer capacity of 900litre.
Bio load - 1 each - yellow tang, blue tang, mimic tank, large clown. Flame Angel, rock Cod, honeycomb eel.
3 Damsels, 2 Chromis.
3 medium hammer corals, 2 medium torches, 2 medium frog spons.
Around 20 mushrooms and Duncans.
Have no issues...