Plants planted to close to each other.

Hey mate, yo can bend the mainstems into different directions with a threat or towel to give them more space in the middle. Use something on the groudn or in your area to fixate it. Bend careful and slow and will be no problem, you also just need a slight angle on all of them to give enough space. Then you should have way more space in middle. If you find out in the future, that its not enough, you could bend a bit more or take off a few fanleaves in the middle, if there are just 2 many. they become pretty useless then and are dangerous in terms of pest and mold. Happy Growing mate, no worries about it.