Weird Brown Blobs?

[gracerig]

My friend sent me a picture of these brown blobs that she found at the bottom of her tank and I have no clue what they are. They were found in a cycled 5 gal tank kept at 80°F with good water parameters. She hasn't noticed any other changes in her betta's behavior or the tank itself. Anyone know what these could be?

 

[Demeter]

Are they squishy? They look a bit like soggy betta pellets to me.

 

[gracerig]

She said they're bigger and harder than the pellets when they get soggy and sink to the bottom