2 ? - Sponge and maybe nothing

[nxb161]

These first two pics are of the same thing, just slightly different angles. I don't know, maybe some type of sponge?

This next one just seems like something, I know fussy to look at, but its small, pinkish and just don't remember it being there when I started the tank. I realize its a long shot, just thought I'd post anyhow.

Thanks for taking the time to look.

 

[thincat]

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