a better way is to put in 1 gallon black container. Then to transplanty you put a layer of soil in a 5 gallon container then put an empty 1 gallon into the middle of the 5 gallon container. pour your soil mixture into the 5 gallon, with the 1 gallon in the middle. Make sure you get all the way around the 1 gallon, tucking the soil slightly with your fingertips all the way around the 5 gallon, until all you see is a full 5 gallon with a full 1 gallon in the middle. Very carefully wiggle out the 1 gallon container, leaving a perfect 1 gallon hole in soil of the 5 gallon. Now take your vegging plant turn it to it's side slightly, squeeze around the container and the push on the bottom of the 1 gallon the plant is in. The plant will slide right out keeping the 1 gallon shape exactly. If it is root bound, take a clean razor blade to slice from top to bottom of the root ball. The you slide the perfectly molded 1 gallon into the perfect i gallon hole in the 5 gallon. fill to approx 2-3" from the top of the 5 gallon container. Slightly firm the soil on the top, then water soon. This process will not stress the plant in any way. If anyone need more of an explanation I would be glad to help. to do this way you must have the plant in a 12 gallon container, whether that is by putting a clone or seed.