we basically feed all day long. Ideal way to feed NPS is to drip it in all day long, however we are manually feeding them. In the morning when the lights go on, we feed our fish Rods food and Rods fish eggs. Then through out the day we will feed a mixture of the above food, and do a lot of target feeding. We have a variety of feeding tools, a turkey baster, a syringe with feeding line and a couple medicine droppers. One of the droppers is left with the original size opening (for the finner particle food) and one that we cut off the tip to allow for meatier foods. We do basically have to adjut the amount and type of food used frequently depending on how the corals are doing. We still havent figured out the best way to feed yet. At the end of the night then we does phyto and Brightwell Zooplantinos M and S.