Thx big fish!Brine shrimp is not a nutritious meal for them. It's more of a treat than anything. No fish will thrive, let alone survive for very long on brine shrimp. These types of fish forrage for live pods every waking moment, so if you don't have enough to sustain them, they will just waste away and die. If you look closely at fish stores, many times they already have sunken bellies from being starved.