when I train my pets - they go up in the number - (i.e.) health 20/45.... how do I get the first number to match the second number??

You can visit the healer to get full health.

https://subeta.net/explore/healer.php

Or just use a health item in battle. The first number just doesn't grow because it tells you your current health and training doesn't heal you. c:

Thank you - Thank you :)