Hello JD I only run a 400 watt light but I still manage to get 16 plants under it, but I do suffer from very small or imature buds at the bottom of the plant
That is in a area 6 x 6 feet, but with a 1000 watt you should do much better

Hopefully I might do a little better with the bottom buds this time as there are less plants, so when the boys have been removed there should be 5 or 6 girls left ................. there should be plenty of space


love mand xxx


Oh on average there is usually 8 - 10 girls when starting with 16 plants