Spikes on media in my sump

[MohamedF]

Good day everyone , my tank is basically new 2 months old . I have spikes on the media stones inside the sump, I asked local fish store they said this should be Normal but I wanted to know the cause and it’s name if possible so I can read more about it . Thanks .

 

[Shon]

Bryozan?

Bryozoans’ role in the ecosystem

In this video, Associate Professor Abby Smith talks about the very important role played by bryozoans here on the mid-continental shelf in New Zealand.

www.sciencelearn.org.nz

 

[MohamedF]

Bryozan?

Bryozoans’ role in the ecosystem

In this video, Associate Professor Abby Smith talks about the very important role played by bryozoans here on the mid-continental shelf in New Zealand.

www.sciencelearn.org.nz

At first I didn’t saw the same as mine but there was a video in the link you provided that have the same look like exactly .. I took this screen shot from it .. thanks a lot now I will read it .