Hi folks,<br/><br/>When we purchased our Nimbus from MOT, they supplied us with a 16 oz container of Schaeffer's 285 Fuel Shock additive. We use this on each fillup to manage any algae buildup.<br/><br/>Would like to know if anyone has a recommended source for resupply or if other options might be recommended.<br/><br/>Thanks.<br/><br/>Don