Will Cory's or fish eat a marrow?

Question

Will These fish eat a marrow..

Danio's

(Peppered)Cory's

Guppies

Pleco

Answer 1

Here in sunny California, marrow is the spongy inside of a mammal bone.  I am guessing it is something different where you are, perhaps a vegetable since those are vegetable-eating fish.  My fish get their food available for 15 minutes three times a day.

The only fish on that list that would need something available all the time is the pleco who needs some driftwood to nibble on.

Answer 2

Where are you from? Marrow is the same as squash?

Same family as pumpkin, zucchini, gourds, etc etc.....?

Yes fish can eat them.