Thanks for your time in replying

The fish would get fed twice a day during the week, and either a fish block for weekends, or I have read somewhere that it's ok to not feed them for a day or two each week??
School holidays are more of an issue - up until now, we've had barbs etc, and a fish block worked fine.
We're currently on holidays, and I bought a heap of feeder fishes for the oscar (advice from my LFS), so hopefully he's doing okay

Can't wait to see him again on Monday!
What water tests do you recommend on a weekly basis? At this stage, I check
pH every now and then when we do a larger water change.