Help with nutrients

[rizcuny]

My 2 Northern lights autos are now 29 days old, i have been feeding them water only in plant magic soil supreme, which is advertised as an airy soil with organic stimulants lightly fertilized (meant to last with out nutrients for 2-3 weeks) mine are now in there 5th week and growth has slowed down. So i need nutrients asap, they will be flowering in the next week so what nutrients should i buy for them? Is there any all in one bottles or even just a bottle that will help it flower without any other nutrients. i dont want to be buying more than 1 bottle and ideally spend less than 20 pounds.

Will these ones be okay on there own without any other nutrients? Or can you recommnend better?

https://doctorblooms.co.uk/Alga-Bloom?language=en&currency=GBP&gclid=Cj0KCQjw37fZBRD3ARIsAJihSr2fz4SrjEmF9nOIY9rA6DUo-WlY1UNY43VfoRKtU5f2WIErOPyjE9EaAigLEALw_wcB

https://doctorblooms.co.uk/terra-bloom?language=en&currency=GBP&gclid=Cj0KCQjw37fZBRD3ARIsAJihSr1FOvGA3s8_8O7A-yTXvWeAW--3FtTdCzfGqYZ1m74fWEZmwrjsZKQaAjGREALw_wcB

[Redwasp]

People tend to hate what i use. And it isnt cheap. For flowering 2 bottles. I buy it by 5 gallon bottles. About 150 each us dollars. You probably will never use that much so small bottles will do. I use fox farms big bloom and tiger bloom. They can be harsh but I do ok. If you have seen my plants well you know. You have to be good at watching what your plants want. Ask @D.A.A.S..69. Sorry it didn't tag him. He uses all natural except 1 I think. And why won't it tag people anymore. DAAS is good at easy nutrients and wont feed you bullshit. Mine work for me but my plants are my best friends so I know what they want.

[rizcuny]

I have purchased Biobizz Grow, Bloom and top max on eBay for £20 shipped (500ml) how much ml should I use to the litre of each and how often ?