I am a beginner and just got a sf 1000 27x27x62” grow tent kit I am wondering how many plants I can grow in this space? If I want to grow 3 or 4 plants should I get a bigger tent?
Two plants will more than fill your tent. Adding more probably won't increase your yield, although it might save you a week in total grow time. The more plants you have, the more chances for issues you have.