Organic ferts lacking somthing?

If one were to use Iguana Juice and nothing else for a veg cycle lasting 2 months would one run into any deficiencies?

not really.......you should be ok...maybe add some superthrive...its real cheap and has lots of vitamins for roots..

cal/mag def possibly they purposely don't put enough in so you have to buy the other bottle. if your'e in soil then put 1 tablespoon of dolomite lime per gallon of mix and you will not need to buy cal/mag. It's cheaper too.