Community planted tank. Mid-level lighting (2wpg), Flourish Excel daily, Flourish twice a week, Eheim 2215, weekly 30% water change.
Don't overstock. Just because your house might fit 100 people, doesn't mean you'd be comfortable living with them... Same goes for fish.
Assorted Hygrophila (Polysperma, Difformis, Rosanervig), Valisneria spiralis, assorted Java Fern, assorted Anubias, Ludwigia, Anacharis, Lace Fern, Watersprite, Bacopa Caroliniana & Monnieri.
Once upon a time (2002) I received a single goldfish in a tiny plastic carry container for Christmas. The rest is history...
Keeping anemones in a reef tank can be a challenge if you are not fully prepared.
Cultivating a nano tank can be an exciting challenge but unless you choose the right fish for your tank, you may be in trouble.
When you see signs of stress in your fish, you can then take steps to identify the source of that stress and then to resolve it before it becomes a major issue.