Phosphate thread, and oldie but a goody

[Treebeard]

I came across this thread while researching phosphates as it relates to what we feed our tank inhabitants.

It made me realize I need to rethink how much and how often I feed, but how do I know if I am underfeeding? How fat should a fish look? Currently I feed nori in the morning and mysis and pellets in the evening. Do I need to feed mysis and nori everyday (or at all for that matter)? So many questions...