The Biogrow @ 1 ml per litre could be a bit hot for an auto, Carl. It's a good idea to start with a 1/4 rate, and work up from there (autos can be a bit sensitive).It's all bio biz light mix grow and root juice so far 1ml per litre of each.all my research is leading to nut burn alright.. The plant is doing great otherwise.. It's 2weeks old other than the original soaking it hasn't had a good watering .. What the best way to flush while so young ..it's in an 11 litre pot.