My hermit was munching on my frogspawn - Is this normal?

[Do scarlet hermits like to eat frogspawn? I turned on my lights to show someone my tank....and saw my elusive Scarlet Hermit proudly perched on top of one of my branching Frogspawn....eating away! At first I thought it was just searching for food around the pollops...then I saw him pull a piece off and eat it....

Pissed me off! So, I picked him up and deposited him at the other end of the tank.

Has anyone else had this trouble?]
 
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