sugar dosing to lower nitrates in your reef tank aquarium nitrate control in your aquarium using table sugar or vodka use either sugar or vodka, not both. sugar is cheaper so I will use that. fish waste or uneaten food results in nitrates, which need to be removed from your tank dosing sugar feeds the good bacteria and allows it to remove more nitrates do not overfeed your fish try to control yourself and not put too many fish in your tank a nitrate reactor will aid in lowering nitrates but they cost more money and take up space in your sump go slow! you should first try to find the reason your nitrates are high and start there. do not use sugar dosing to fix issues that are always present sugar dosing will reduce N03 and P04 phosphates and nitrates in your tank sugar dosing helps to build a bacteria army that will get rid of the nitrates you must have a protein skimmer to sugar dose. your skimmer will be removing the extra bacteria that houses the nitrates the cliff notes…..