Yeah I made sure to do my research first. And I do not have the storage space for the quantities of stuff you have to mix yourself. I had to buy 19kg of lime and I have used 10g, I use 1g of fertiliser per 2L of water and I had to get 2kg. I prefer the watered down Cal-mag stuff tbh cause you only need to add a tiny bit and I find it easier to work with if it is diluted.
I am planning on doing some nice small grows with a supergreenlab setup . If I get a bigger place and can grow bigger plants I 100% will do my own nutrients. My soil usage is less than 1 gallon a plant so I am working in really small quantities
I just haven't found a place that sells a kit of 40g bags of every micronutrient so you can easily make it yourself. If I have a magnesium deficiency down the road I will get Epsom salts to handle it if I have to, I was given 20g of gypsum so I should be good on calcium
**Edit, didn't realize you meant kingromano's "budlight-esk" fertilizer. Yeah I stay far away from that's stuff. My 2kg is powdered blue granules that's really fckn strong
Sidenote: if I ever make my own shitty watered down fertilizer to sell I will call it buds-light