How much nutes do I use?

Hey everybody I am about 4 days into flowering (plants are 38 days old total) and I was just wondering how frequently and how much of the nutrient solution I should use when applying? I have 3 plants, each about 20 inches tall and I use Technaflora nutrients but I am not sure how much to give them each time and how frequently I should feed. Any help would be appreciated, thanks! Also, I'm using Sunshine organic soil in 4 gallon buckets.

I dont know the technaflora, but you can go either way cut it down to almost nothing .. or just stright water

I dont know about Technaflora nutrients but the 1/4 strength thing seems to work. i would start out with a 1/4 strength of what it says on the bottle and adjust as needed.