Hey Clark, I'm gonna guess you have small young plants. I've only used H&G aqua flakes in my MMJ grow. But I have some tomatoes going in another AG I got off of Craig's list, stupid cheap....haha....sucker for a deal....anyway my first AG came with liquid nuets and I'm using them on the tomatoes with good results...Mix 1 gallon water, I use filtered tap water, at first only one packet, then check the pH level. MMJ likes 5.5 to 6.5, so do tomatoes...If they except the nutes and stay green use 2 packets per gallon after a week or so. Empty the reservoir first then add the proper amount..pH levels are the most important part very critical...
You might want to consider their nutes at half strength if you're only growing a couple of plants. They're formulated for seven herbs or veggies not two or three M/J plants.