nute burn, if your using soil as a medium you obviously have used a full strength mix not a seedling mix?
sorry I wasn't more clear. I am using a bubble hydroponic set up(above). Though, I think you had it right. I was using both the grow and the bloom formula at once. Thanks for the heads up.
haha never ever use bloom until you start flowering and make sure you only use 1/4 strength nute mix to start.
yes nute burn for sure. at that size start off with the EC level at 0.20-0.30 and test every day if your EC level rises, your nutrient strength is too high if your EC level drops, your nutrient strength is too low if your EC levels remains stable, you have it correct always keep your PH between 5.5-6.5 use an air pump of a minimum of 10 litres per minute for a 5 gallon reservoir. more air = more bud