Moving your plants around manually has some disadvantages, but some can come out of it. Shaking the plant around gently everyday will strengthen the stems quite a bit. Normally the circulation fan does an alright job of this, but more can never hurt.

However, moving your plants around every day you do run the risk of accidentally breaking a branch, not moving the plants at the same time every day, or dropping one of them... all of which your plants could recover from. but who wants any of that?

Just be really careful and everything should be fine :thumbsup: