Preffered Nutrients?

This is medium dependant for hydroponic systems I would recommend Hydrocrop until the sun came home because well look at my sog grow the nutrients are cheap and very good I think they work out at around 0.02 pence or cents per litre of feed. It boggles my mind that every company claims to have the best formula and well use your common sense they all cant be right you know lol depeding on how much water you go through then i would plan to get nutrients that are within my budget and have good reviews and proven results. I personally think alot of growers are taken advantage off when it comes to nutrients at the end of the day all your paying for is 3 chemicals mixed in different ways these being NPK obviously. why not have the chemicals in powdered form and mix them yourself ? then you get to control when you use them and also you get complete control on when you make them not like most companies as soon as you open that bottle it has a 6 months maximum life and some of these bottles are very expensive its all just to make money in my personal opinion anyway.

Advanced nutrients. Heard so many good things. I'm currently using the ff trio but plan on switching to advanced nutes next grow