Trying S/H for the first time- question about leca size

[camille1585]

Now that I'm staying put in one place (as a student I was constantly hauling orchids between home and University) I've decided to try S/H on some plants. I have a Brassia and Miltionopsis that both have new growths putting out lots of roots, so it's perfect timing for them to go to S/H.

My problem is that the only leca I could find over here is a bag of leca pellets of mixed sizes. The smallest are .75cm diameter, the largest over 1.5cm. I'm afraid that this is not going to leave enough air pockets between the pellets. Should I go through the trouble of removing all of the smaller pellets in the bag? Or will it work fine the way it is?