Thats not 1-1, if I was doing 2L I would add 1L of Phyto. Im using 1/2 gal jugs so I use 1qt of phyto when I start. When I split I take 1 qt of phyto and then add 1qt of water/fertilizer mix for a 1-1 new mix. With the 1-1 ratio you double your phyto every 5-7 days. Its going to take longer for the phyto to fill the jug.