Cyano problem?

[Aquattro]

You should be able to blow cyano off with a turkey baster. It should peel off in little sheets. It will accumulate tiny air bubbles as well.
I've been getting quite a bit lately myself, and discovered A., my Tunzes were almost plugged and B., my bulbs were due for replacement. So far no cyano growth since remedying these two items. I'm only running partial lighting this week to acclimate, but so far I've got no more cyano....