Please help me ID my algae!

[fishybizzness]

Hi everyone, This algae recently started growing on a small flat rock on the sand bed. Could someone please help me Id it and let me know if it's good or bad for the tank. Thanks

 

[fishybizzness]

Btw, the tank has been setup for almost 2 years and I've never seen this before

 

[justmee]

Not sure if that's algae, looks more like some sort of aiptasia...

 

[fishybizzness]

There's one aptasia to the left but it's the green stalks in the middle that I'm wondering about.

 

[Chavin20]

Neomeris annulata

 

[fishybizzness]

Neomeris annulata

Good or bad?

 

[shred5]

Good or bad?

It is more like halimeda and is a calcareous algae..
Not usually.. Most of the time it is short lived and actually a sign of a healthy aquarium..
I have seen an instance where it has got a little out of hand, but usually it is even hard to grow.
I like it in a reef and is attractive, I also like halimeda in a reef aquarium and both are natural on a reef.
If alk and calcium are kept high enough they can grow some.

 

[fishybizzness]

It is more like halimeda and is a calcareous algae..
Not usually.. Most of the time it is short lived and actually a sign of a healthy aquarium..
I have seen an instance where it has got a little out of hand, but usually it is even hard to grow.
I like it in a reef and is attractive, I also like halimeda in a reef aquarium and both are natural on a reef.
If alk and calcium are kept high enough they can grow some.

I was hoping it was ok. I think it's pretty neat looking!

 

[fishybizzness]

It also fits my whole " natural looking " tank concept!

 

[cristata.reef]

Definitely Neomeris, but perhaps not N. annulata (species identification requires examining growth pattern of calcified gametangia towards the base.

But I digress. These are pretty cool algae that do well in tanks w/ good calcium levels. Like coralline, if you can keep these, you usually have good calc/alk levels

 

[tsintse]

Definitely Neomeris, but perhaps not N. annulata (species identification requires examining growth pattern of calcified gametangia towards the base.

But I digress. These are pretty cool algae that do well in tanks w/ good calcium levels. Like coralline, if you can keep these, you usually have good calc/alk levels

My tank has been covered with these at times. I recently moved my clam into a new 65 gallon and it had a couple of these left on it's shell. After about 4 months my new tank was covered in them! Couple months later after I got my nutrient levels down they started fading away and actually kind of disintegrate into what looks like sand. The attached picture was right about when they started to fade.

 

[cristata.reef]

My tank has been covered with these at times. I recently moved my clam into a new 65 gallon and it had a couple of these left on it's shell. After about 4 months my new tank was covered in them! Couple months later after I got my nutrient levels down they started fading away and actually kind of disintegrate into what looks like sand. The attached picture was right about when they started to fade.

Whoa that's insane! Never seen anything quite like that before

 

[fishybizzness]

My tank has been covered with these at times. I recently moved my clam into a new 65 gallon and it had a couple of these left on it's shell. After about 4 months my new tank was covered in them! Couple months later after I got my nutrient levels down they started fading away and actually kind of disintegrate into what looks like sand. The attached picture was right about when they started to fade.

That is pretty wild looking!!

 

[Chavin20]

My tank has been covered with these at times. I recently moved my clam into a new 65 gallon and it had a couple of these left on it's shell. After about 4 months my new tank was covered in them! Couple months later after I got my nutrient levels down they started fading away and actually kind of disintegrate into what looks like sand. The attached picture was right about when they started to fade.

I immediately thought of this

 

[tsintse]

Hah, my kids favorite fish at our aquarium! When they were in full bloom they really did look like hundreds of little green worms popping out of the rocks. Now they look like a small crumbling white sticks with a bit of green at the end. When you grab one and rub it between your fingers it has the gritty texture of wet sand.