What else can I do?

[Enigma]

What kind of bulbs do you have?

In my digging, I discovered that Cree cool white LEDs cover the spectrum that cyano thrives in. I had my cano problem mostly under control, and then I switched out my t5s (2-Blue+, 1-Coral+, and 1-Purple+) for LEDs (Sol Blues). The cyano exploded over the course of a few hours, and I can only assume it was the spectrum provided by the cool white LEDs that did it.