Well, I still don't have the support wall completed
But I do have the storage room clean!
On to more urgent matters. A little over a week ago someone pointed out a red algae on one of my rocks and suggested that it might be cyano. Over the next days I watched as it spread to another rock and the sand. By Thursday morning it had spread significantly. I tried several times to siphon it as best I could - with little result. I did some reading on line and came up with a possible solution.
Since cyano needs light to survive, the absense of light will kill it. The theory was to turn off the lights and either close all blinds in the room or wrap the tank in a blanket for three days. During this time the fish will mostly sleep and coral will survive.
So I gave it a try. . .
I continued with regular, but lighter feeding for the three days, made sure the skimmer was working well and hoped I was doing the right thing. At the end of day one there was no noticable difference. By the end of day two almost all the cyano was gone - there were still multiple red strands on the sand. By this afternoon the tank appeared complelty clean - an incredible difference! I wish I had before and after pictures, but never thought of that.
All the fish, snails, crabs, shrimp appear perfectly fine. The soft coral and LPS appear a bit "ticked off" but are already coming around and opening up.
Time will tell whether this is just a very temprary fix, whether significnat progress was made or the elimination of cyano was achieved.
So, maybe I'll finish the floor support project this week . . . LOL