The Bronze Cory or Coryadoras aeneus like their water a bit cooler low 70s. In general, Cory’s like water on the softer side but these fish have been in the aquarium trade for so long like can accept a wide range of parameters. Feeding should consist of mostly meaty foods - worms, insect based foods with black soldier larvae and brine shrimp or other small crustaceans like daphnia, cyclops. I often will take the freeze dried tubifex and bury it in the sand for them to find. It’s a hoot to watch them!
Breeding - Optimally you have a 2:1 ratio of males to females. Age wise probably 9-12 months old. Then when you’ve got some females who are looking rather broad through the girdle I feed them heavy on blood worms, tubifex and brine shrimp for 3 days. If I can time it I’ll do this when I know a weather front is coming. Then I’ll do a large volume water change with cooler water 5-10 degrees usually and within hours to days I’ll see eggs on the glass, moss and plants. They can be colony bred but if you want a higher yield pull the eggs and watch @Dean’s Fishroomvideos on raising Cory fry!