i need some quick help

I been researching and finnally found this nutriens cycle for fox farm nutes.Now when they say per gallon what is that saying. To me it sound like water the plant with one gallon of water each week with the type of nutes it needs. Im plannin on using the ocean forest potting soil. What size pot should i use to start with. And how much should i water each week to get it the right amount of nutes. Im using 2 75 watt energy saver lights with the light reflectors that will be 6 " away from it. there will be air passing threw so no need for an fan(keep in mind im only doin 2 mabey cause i dont want the risk of an male). My space will always be at least 65-75 degrees. Should i get the ph test kit for the water and the light timer as well cause i plan on doing 18 on,6 off for the first 3 weeks then goin to 12/12. What do ya think


WEEKLY FEEDING- per Gallon ??????
Sprouting and week 1--BigBloom 2TBS
week 2-- 2tsp Grow Big + 2TBS Big Bloom
Week 3--3tsp Grow Big + 2TBS Big Bloom
Week 4--JUST 3 tspGrow Big + 1/4 tsp Open Sesame
Week 5 same as week 4 unless going 12/12--
Week 5- OR--day 1 of 12/12-- 2 tsp Tiger Bloom +1TBS Big Bloom + 1/2 tsp Open Sesame
Week 6--same as above
Week 7-- 2 Tsp Grow Big + 2 tsp Tiger Bloom +1TBS Big Bloom + 1/4 tsp Beastie Bloom
Week 8-- 2Tsp Grow Big + 2 tsp Tiger Bloom +1TBS Big Bloom + 1/2 tsp Beastie Bloom
Week 9-- 2 tsp Tiger Bloom +1TBS Big Bloom + 1/4 tsp Cha Ching
week 10-- Same as above
Week 11--2 tsp Tiger Bloom +1TBS Big Bloom + 1/2 tsp Cha Ching

the gallon thingy means when mixing that amount of nutes u should be putting it in a gallon u dont have to water 1 gallon of water to plant if pot is like 3 gallons

so basically get an 3-5 gallon large pot and water it every sunday with an gallon of the water and mixed nutes right?