Hydra

[PPMN]

Could it be bryozoans?

 

[ash]

I don't know a lot about them. there are freshwater species so I guess it's possible?

 

[PPMN]

I think I found it (maybe...it looks like the photo on the right):

http://www.dr-ralf-wagner.de/Bilder/Campanella_umbellaria.jpg

 

[ash]

Wow. is it that thick in your tank?

 

[mellowvision]

that's crazy lookin

 

[loaches r cool]

Wow that does look different - I have had a mass of them like in the pic I posted but they form into a long chain of buds, not a big pile.

 

[PPMN]

Well mine are not that numerous, but it's exactly what they look like so it must be that. I read they eat algae and grow when there is lots of bacteria. I'll have to do more research, I'm very curious.