New to tubes have questions

To answer these questions.(1)It won't hurt the amps to play w/o warm-up,though 5-10 min to let them idle won't hurt either.Most tubes take 30-40 min to sound their best,with the performance elevating from that point on.
(2)About the same period before biasing.Let it stablize.After about 2-300 hours the tubes should be broken in and not need daily biasing.This will be dependent on the quality of the tubes.Generally speaking NOS perform better than the new generation of tubes,but there are exceptions.
(3)Don't turn the amp on/off quickly-watch for tubes glowing brighter than the others.
Hope this is helpful.Enjoy!

3. Don't turn your amp off and on, off and on...Did you ever notice how light bulbs fail when you turn them on? Similar situation here as mentioned above. Turning your amp on is stressful to your poor little tubes. Keep the on and off to a minimum.

The biggest "don't" is never power on a tube amp unless it is connected to a speaker.

Gs5556 and Pawlowski6132 named probably the biggest don'ts.

If you get a tube amp that has a power on switch and a separate standby switch, be sure to follow the owner's manual and don't turn them on in the wrong order.

Thanks to all of you for your great advice. I do now feel better about what I need to do with my new amps. The manual is not as specific as you have all answered.
Thanks again