Is this cyano?

[AT_Hiker]

When I started this hobby a few years ago I also used dry pukani rock from BRS. I cured it for 3-4 months before using it, and treated it with Lanthanum chloride to reduce P04. I kept it in my 75 gal for about 3 years, and struggled with various forms of algae from day 1. In the end I just couldn't keep the cyano and bubble algae under control, so I moved all of my livestock to a smaller aquarium and started over. I started over using live sand, and high-quality live rock purchased from an awesome LFS. I've been running this setup for about 1 1/2 years without any sign of algae at all. I didn't even get the normal startup hair algae. I will never put pukani in my tank again.

 

[Bl4ckDr4g0n]

I yanked the filter sock, I pulled the carbon bag, I turned off the skimmer. Its been a week, nothing else has died, how long should I let it sit this way?

 

[Chicagoreef2016]

I found that feeding frozen foods in my tanks spikes all types of algae. I am currently on the tail end of a cyano outbreak. Stopped with frozen and combined with a couple 5-10% water changes and it is disappearing. Had same issue prior to with green hair algae and frozen, didn't learn my lesson. my parameters all tested the same throughout, with phosphate showing 0 on my salifert tests. The algae/bacteria outcompeted my refugium...

 

[Paul n]

Are you still suffering? If so any close up pics? Have you noticed and air bubbles trapped in the algae?

 

[Snaredrum]

Are you still suffering? If so any close up pics? Have you noticed and air bubbles trapped in the algae?

Whats the air bubbles in the algae mean?