how do i give my plants nutrients if

i am using hydroponics? i was just randomly thinking and hope you respond thanks and what kind would i use also

Whatever Gallon your res tank is, check your feeding schedule and adjust for (I.E. 20 gallon res tank) it will tell you how much to use for w/e size tank. Depending on what your using, if its 2+ part dont mix them together put them in one by one. I believe (not sure) certain nutes need to go in and stirred well before others (to prevent nutrient lock)

Edit: Keep PH between 5.8 and 6.8 right guys?