Looks like it’s on it’s 4th. I like to wait until it hits its 5th or 6th node and then chop it back down to the 4th or 5th node. Doing it this way slows the plant down very little if at all if you have a vigorous and healthy plant. Same with transplanting. If you’re not a savage during transplant often times they don’t get transplant shock at all and continue to grow normally.