Feeding freshwater fish.

Question
How often should I feed my freshwater fish fresh vegetables, once daily, weekly?

Answer
Hello,
Once a week, and on the day that you feed him veggies, feed him nothing else so he can clean out his system.   Green veggies are best.  This is so he can avoid constipation which leads to Swim Bladder Disease, and often goes unnoticed.   You did not mention what fish.  For instance if it is for a Betta, feed him one cooked pea with the outer layer removed, and cut into tiny pieces.  Feed the pieces one at a time to your betta making sure that it doesn't fall to the bottom of the tank.
Lynda