Question about rock filtratin at the bottom of a 5 galleon bucket using soil

I have a 5 gallon pot thats about two feet in diamiter and 18"s tall. What I want to do is put about two inches thick of creek rocks (sterilized) and then fill the rest with primo soil I have and then use that wide space to veg 4 clones in. I think for my sea of green this will work and save me room on one gallon pots. since its 5 gallons total i have four clones in 4 gallons of soil, since im only letting the clones get 16 inches tall before bloom. Are there any concerns I should know about? doing this tonighte. much love and appreciation

Please this is my first indoor grown and I cant find any material on the subject of rock filtration? bad or good,

don't bother with rocks on the bottom. They do nothing to help. As long as the pot has a decent amount of drainage holes you're good to go. As for 4 plants in one pot, I don't think thats a good idea. Much better off with each plant in its own pot, imo.

even if I am only going to let the cones got 12-16"S

You can use rock on the bottom of your pots, many people do. It ensures easy drainage and keeps the soil from compacting on the bottom. The roots like to grow through and wrap around the rocks, which retain moisture longer.

Stick with only one plant per pot, unless you are using feminized seeds or clones.

cool, thats what I needed to know, and yes I am using clones. BTW whats the best time to start prunning to achieve the four main branches? thanks for all the help

i use been useing river rocks medium small size wash first with hot water and about a once of bleach rince better then good use dump remains upside down collect stones dump soil in compost re rince and reuse stone over and over keep with my ots im going to smart pot next filled and waiting to go no stones for smart pots