Feeding Fish Vegetables

[Enigma]

Apparently, some fish are supposed to be fed vegetables. This is an entirely new concept to me.

I did some reading online last night, and I found plenty of references for the feeding of veggies to freshwater fish. Feeding suggestions for saltwater fish were few and far between.

If the feeding of veggies would be beneficial to my critters, I would certainly like to attempt it.

Does anyone have any suggestions or experiences to share?