Vortex Diatom and Cyano Outbreak

[trippyl]

I recently started adding a vortex diatom polishing phase to my weekly routine and have noticed an small cyano outbreak. I have suspended my vortex phase out of concern that this might be the root of the issue. After all, cyano has some relation to diatom, and I am filtering all the water through diatomacious earth.

Am I correct? Will a vortex diatom filter cause a Cyano outbreak in a mature reef? Does it mean that some diatoms are escaping into the tank? Or is this a result of my stirrring up more gunk for the vortex to pick up?

Thanks for any advice....

 

[OnTheReef]

This is more likely related to your protein skimmer efficiency than to filtering with DE, though I suppose your DE might be leaching some minerals (such as phosphates) to your tank water, giving the cyanos a more favorable environment. But this seems unlikely, so I would look more to your dissolved organics first.