As you can see in these following videos, capillaries are able to suck little waterhills in the surrounding areas of floaters away, so that a floater in a capillary rises more than a floater outside a capillary.
For this you can create a circulation between the two floaters, that creates energy, but the question is, where does this energy come from ?
here is the 111 sec version :
https://youtu.be/SbB7kPnwZXQ
and here the detailed explanation :
https://www.youtube.com/watch?v=u2dsHW-fOUg
Please let me know, why do you think this is compatible with energy conservation as far ?
best deschoe