Hi there latebloomer77. Almost all fertilizers will provide instructions on the bottle on how many ml of fertilizer per liter of water to blend so the mixture delivers the NPK (Nitrogen - Phosphorus - Potassium) ratio (when you look at the fertilizer bottle you will see this ratio, like the grow bottle for the product you found is 24-0-0, which means it delivers 24% nitrogen, 0% phosphorus, and 0% potassium per weight) that will help your plant grow instead of killing it. It looks like on their website (if I am looking at the same product), they are recommending 2ml from each bottle to be mixed with 1 liter of water. I would recommend following those instructions unless you want to do some research to understand how many ppm (parts per million) of each nutrient is optimal. However, I don’t see any reason why you couldn’t try those nutrients (or others).
This is an interesting article about considering the cost of your fertilizer, and this guy happens to be one of my favorites for understanding how to grow plants better:
https://www.gardenmyths.com/are-you-paying-too-much-for-fertilizer/
Hope this helps, and happy growing!