Fasting Ribbon- Please help?

[Elliot]

I thought D3 is vital in the use of calcium...

It is, MBD is caused by a lack of calcium/D3 or a bad ratio of the two.

[rafiki]

Oh my god! He's been fed goldfish his entire life. What should I feed him? Guppies? Aren't they too small?
He refuses to even sniff pinkies, or earthworms.
I'm afraid to use fish from the supermarket because I've heard so many horror stories about it. I'd really rather not go there, if there's any other way.

What do you feed?

[drache]

I'm afraid to use fish from the supermarket because I've heard so many horror stories about it. I'd really rather not go there, if there's any other way.

do make sure the supermarket fist is frozen and thawed to reduce parasites