Brown threads all over the tank

[mikedgrok]

Hi all,

Wanted to see if folks knew what this stuff might be / associated with.

These started appearing more and more in the tank over the last week ... No major changes in tank or water chemistry. No additions to the tank.

pH 8-8.2, alk 9.8dKh, calc 430, nitrates around 5, phosphates undetectable

Tank is still newer - 3 months or so - been thru diatoms and a bit of cyanobacteria, and now starting to finally see coralline on the plastic surfaces. Fish healthy corals always out and happy-looking!

When I use the turkey baster on these things, they go flying ... But then reattach somewhere else (including on the corals!!) ... Guess I need to vacuum them out today.

Thanks for any thoughts here gang!

 

[dhnguyen]

Looks like the beginning of a dinoflagellate outbreak to me.