Stupid and Curius, does Mixed Greens work?

[flamehawkfish]

For Tangs or other herbivores, is there a difference from using a bag of fresh salad greens (no dressings or anything) and freezing and thawing that, as opposed to taking heads of lettuce and doing the same? Just wondering, since there was variety in the bag, and already cut up into peices, etc.

 

[michaeltx]

No difference really as far as the actual greens but SW fish do not need to eat anything that grows in the land it doesnt have the right nutrients for them to live long healthy lives.
Mike