Thanks! As
@Dan_P said, filter for the bioload, not the size of the tank. I run a big Tunze 9415 skimmer, lanthanum chloride and a little GFO for phosphate and Orca Titanium biocubes for nitrates. Phos at around 0.12, nitrate at around 30, want to get it down to 15. Dosing All 4 Reef for corals. I feed very heavily, autofeeder 3 times a day and a big serving of DIY frozen food once a day, volume more or less equivalent to 8-10 blocks Ocean Nutrition frozen food. Also running a 55w UV and ozone (100mg ozone through a DIY reactor based off the Avast Marine Mutiny reactor), 30min on, 1.5 hours off, any longer and I struggle to reduce nitrates). Used to be quite OCD about quarantining fish, but learned that I killed way more fish with harsh quarantine than disease kills, so haven't quarantined any fish for this tank specifically, there has been white spot in my tanks for about 10 years, even after quarantining everything back then it still managed to get in, but hasn't killed any fish. Still won't be stupid and add an obviously diseased fish.