I was able to shred it up last night and it seemed to just come apart one day layer and its back any idea what it may be.it does not seem to be a sponge
Hmmm I haven't had cyano in a good while so I can't remember exactly what the texture was, but I would consider it sort of silky. Mine would come off in sheets when i sucked it up. If it is coming back over night then it's gotta be cyano, you can almost watch that stuff grow haha
+1 on the red algae I just got some I my tank and it looks just like that and is a pain to get off [emoji35] I usually try to ease up and feed every 2 days and seems to do the trick for me.