Tom Randy wrote:

It's not as hard as it sounds. Water changes and gravel cleaning are done
at the same time and literally take only a few minutes a week. Filter
maintenance is done every month or 2 or 3 depending on the filter, how
much you feed,etc. No big deal!

Just do a bunch of reading before getting started and then ask
questions and you'll be fine.

Welcome!

Fin rot is typically caused by bad water. 8 fish in a 25? You must be doing
daily
water changes!!