Pink fluff in filter outlet spray bar

[Dan Steveo]

Hey guys , recently been getting irritated by this pink fluff that comes out of my filter outlet, every time I turn it back on there is a surge of this pink fluff that comes out of the filter outlet... Today I thought I'd shake the outlet hose a little and there was tonnes of it coming out.

Now I have two filters and this only happens on the fluval 305. Not the fluval 205... Which is weird, the only difference is that the 305 has a spray bar on it...

My theory is this, the recently killed Cyanobacteria has somehow got past all my filter media and accumulated in the ridges in the pipes and when a sudden surge of water is present it forces many parts to dislodge...

And ideas?

 

[Lotus]

I'd take the spraybar off, clean it out, rinse the filter media, then see if the stuff comes back. It's possible it's dead cyano.