Because fish don't stay in one condition. Appetite, stress, recovery and growth phases change. Feeding should respond to that condition - not stay fixed.
No. One condition= one feeding direction. Change only when the condition changes.
Start at the What to Feed page. Identify the situation that best matches your tank today from the chart provided. The feeding choice becomes clear.
"Fine" and "optimal" are different. This system is built for keepers who want controlled input and predictable responses over time.