New “stuff” in my aquarium

[trummer]

Anyone knows what are these ?

Found these “eggs” on my sump today.

and also this white stuff (looks like salt) i

 

[ReefJCB]

Both are sponges. The “eggs” are pineapple sponges and are super common (especially in sumps). The 2nd is just a white sponge, I’ve got it all over my tank in the shaded area.

Both are neither good nor bad. No benefits, but they aren’t doing any harm.

 

[SliceGolfer]

Top pic are pineapple sponges. Lower pic looks like more sponge but can’t tell if it is solid or not.

 

[Greg P]

First pic for sure Pineapple sponges
Second pic looks like sand crud getting stuck in mulm. Turkey baste your rocks