Pruning out crossing and inward growing branches is almost always a good thing. Those water sprouts could go, too. Just don't take out any of the primary branches or do any 'topping' while you're pruning. I don't think that I would worry about every little twig. Walk around the tree so that you are pruning from all sides, and take you're time. Pruning is a 'zen' thing for me. Be sure to prune each branch at the branch collar (see link) so that you never leave a stub. Flush cutting isn't good, either. As long as you finish up your pruning this winter, you shouldn't apply any pruning gunk. Pruning paint does nothing to prevent 'infection', as you say and may even hinder the healing process. However, late spring and summer pruning cuts should probably be painted in order to protect the tree from citrus borers. By the way, be sure you have the right tools for the job. Sharp hand pruners (the by-pass kind), loppers, and a good little pruning saw should do the job, easily. I have a small folding saw that I use for almost every king of pruning. Here is a link that might be useful: Click here

Not worms. Not centipedes. Instead, millipedes. They're not damaging your tree. But the millipedes may indicate that the potting mix is too wet/moist.

I personally usually trim most verticle or inward growth on scaffold branches. I'm a newbie, so I'm not sure if cutting the leader on an established tree is good or bad, someone else will have to chime in as to whether or not you could prune this like a new bare root. It looks like you have some decent scaffolds to choose from so far, maybe this year a branch will develop to the front? Are any going to grow into the wall/window?

Hi! I have no gardening experience and am looking to grow a "fuller" looking rubber tree. I currently have 2 potted medium sized plants that I'd like to prune and propagate. I'd appreciate some tips on how to do so - techniques that are simple and apartment friendly. These plants are situated on an east facing window. I live in South East Asia, so temperatures year round are warm. Right now it's the beginning of summer and one of them have begun forming new leaves at the top. The other one seems much more dormant with the top leaf sightly damaged.