White blob in my aquarium ???

[Baigent87]

Can anybody tell what this please?

 

[Pico bam]

It is most likely a sponge but hard to tell from the clarity of the picture. Harmless filter feeder.

 

[shakacuz]

+1 to sponge.

 

[Baigent87]

Than you guys. Are sponges naturally occurring or introduced? I’ve always had dry rock and ensure to dip coral etc.

 

[shakacuz]

Than you guys. Are sponges naturally occurring or introduced? I’ve always had dry rock and ensure to dip coral etc.

naturally occurring but could also be introduced