I have had pretty good success at fragging branches off my mother colt colony. I cut the branches with an xacto knife under water in a containter as it oozes everywhere and then I use a needle with fishing line to go thru the base and tie it to the rock. I make two runs with the fishing line going in opposite directions to keep it upright. I then put the frags in a low flow area of the aquarium and they attach a few weeks later. It is a MESSY and STINKY job!