Yep. Ditch the air pumps. I knew thats what Canna would tell you. Theyve said it before. Ive been growing for almost 30 years. And unless your dwc or some other recirculating water culture system... air pumps in tanks (especailly heavily organic additive and myco tanks) are asking for trouble. Even with recirculating water based systems I would just use a standard base nute and no additives except hydrogen peroxide when using air pumps. Your Canna line with the addys are fine sitting in a dtw tank for 5 to 7 days. If you size the tank right and have the feed times set right..you should be ready for a fresh tank and reset by then anyways. Good Luck.