I think you would prune just the same for hydro as you do in soil, so no changes needed there. if you are a pruner - like me, then go for it. If you are a leaver, then leave them alone
As far as a feeding schedule for hydro, they get fed constantly, so Im not sure what you are asking. Or do you mean changing the concentrations and/or type of nutes between veg and flowering and possibly late flowering?
If the latter, I would suggest you follow the label directions for what ever nutes you have. You can also Google those nutes and see what others are doing or read a bunch of threads and FAQ's
I use Mega Crop so its much easier for me. I dont change nutes as I grow - its always Mega Crop and its always set to an EC of aprox 1.3 and adjusted as needed based on what the plant tells me.
I adjust the EC to around 1.3 and then watch the EC and PH changes as the water in the rez drops. Then I follow this rule:
EC goes up and or PH goes down, lower EC
EC goes down and PH goes up, consider raising EC
Its that simple. All you need is a decent EC or PPM meter and a decent PH meter.
That rule applies to any nute brand by the way, but Mega Crop is about as simple and easy as it gets. I love the stuff.