soak the cubes for a few hours b4 in a solution like multiphive just 1 drop per ltr.Then start of with yhe small cube's the 2ince ones make your hole at a slite angle so this will get the roots through faster.When you take your cube's out give them a squeeze b4 putting your clones in they only need to be damp check them every couple of days and spray the 4 sides of the cube i also spray the top of the leaves because this is the only way your plant can obtain water while it has no roots has soon has there is any sign of roots bang them into some soil.But i then put mine int the larger cubes ready for hydro system.PUT YOUR CLONE'S INTO SOME ROOTING GEL OR POWDER FIRST,I THINK GEL IS ALOT BETTER BUT EVERYONE HAS THERE OWN PREFRENCE.