Looking for Guidance- Cyano in Sump

[reefbyremote]

Thank you for the reply.

I changed my refugium bulb one month ago. I am using a 6500 daylight bulb as recommended on the Melev's reef site. I will change it again after a couple days black out and see.

I have also read that any FEO leaking from my reactor could contain phosphates and obviously iron, the two things that I understand cyano may need. This could have been the case as I recently changed the FEO. In the meantime I have cleaned out the cyano and went to a slightly more powerful return pump I had on hand, a eheim 1260, to increase flow.