just do a 25% water change every week and test water every 7 days, clean protein skimmer every 1-2 days, feed corals and fish daily at the same time, clean filter media eveery 2 months depending on levels of ammonia and nitrate levels, gravel vac every month top 1", thats bout it really and trim corals when getting to big and just dont overstock tank, a big tank is better for water stabilisation same as tropicals i find them easier to keep than my tropicals for some reason i think the protein skimmer and UV keeps water healthier, 100-200 ltrs would be a good starting size,