Sponge food

[Capt Bill]

Any good replacements for Hikari mega marine angel food. Something made primarily from sponge? Dry or frozen?

 

[Rocks reef]

Take a look at this thread sir.
There is a video from MACNA in there that talks about sponge it is not necessary for angelfish to survive long term.

https://www.reef2reef.com/threads/best-angelfish-frozen-food.385726/