I think maybe 4 main tops.
Even better Just like her cousins over here except only two of mine are in good light, the big one I'm bending over for better light and the 4th plant is pretty much just along for the ride in a dark corner.
One slight problem is the amount of water mine are going through.....got a 20L res and they can empty about 2/3rds of it in a day so I'm trying to do twice daily top ups. Makes it easier to flush when it empties so fast but it feels like I'm treading a very fine line and can't afford to miss a day.