algae

cycling my tank and saw these appear. Can anyone identify them? Doesn’t look like algae because it has a base connected to the rock. Is this a good thing or bad thing? Haha

This stuff started growing when we switched over to LEDs. After about a week or so with the new lights this hair started to grow all over the back wall. Its been growing and spreading to the rock and coral. It doesn't look like bryopsis which we have had in the past. Please see the pictures and...

My tank run for 1 years with mostly fish, clam, sea cucumber, sea urchin, soft corals and LPS. Everything looks fine to me. However, I don't see much of coralline algae in my tank. Is it normal? I see other tank has lot more of coralline algae grow only in few months. I use B-ionic 2 parts dose...

Hi all Thanks in advance for your help. I was away with work so missed my regular WC...and this has caused me havoc! My tank is a RSM C130, run as stock with an additional powerhead. Been going fine for over a year. First i had what looked like red slime...I've had it once before and it went...

What the heck is this? some sort of Algae?