Algae or Microb?

[riveria]

hi all,

starting this week, my tank wall was flooded with these microb.
they look like flowers' stalk. waving with current, sort of transparent in colour.

here's the pic:



anyone knows what are these?


thanks,
Albert

[|squee|]

I forgot the name, but they come about when you feed too much. It's not an algae.

[bclee]

Hydra?

BC

[Johnc]

Can't see your picture. But sounds like hydra. Touch one of them with a stick. If it retracts, its hydra. Hydras will eat small fries and shrimplets.

/John