It is fine to do water changes frequently and on a regular schedule, but for the purposes of my experiment the water levels were monitored and the lack of water changes resulted in no fish death or disease in any way. What it proves? There is no one right way to keep a fish tank and there never will be.
Lol I did something similar. That thread got bashed so badly. But it was expected.
I was very into self sustaining aquariums when I got into the hobby, and the circumstances at the time allowed me to experiment... how many fish can I add to a 1 gallon non filtered heavily planted tank whilst keeping parameters at zero?
So in a 1 gallon I ended up with...
2 corydoras, 2 otos, 3 endlers, a million ramshorns and mts, 1 nerite, 6 cherry shrimps and 3 ghost shrimps. I always overfed the tank... however, I never found out how many I can add because I realized that even with params at 0, CO2 levels at night with such a crowd had the fish gasping at the surface, so I added an airstone and left it at that. after a few months, I could get bigger tanks for bettas and re-homed everyone to much larger tanks :)
lol the poor fishies, but like your female, the endlers started so small and ended up being so full grown and colorful XD.