Found these 2 wonderfully bright purple macro algae starting in my tank. No idea where they came from! But any ID would be great

[Sushiboy225]

Hello! Recently I found these 2 macroalgaes growing in my tank. I’m not sure if they are coralline. There doesn’t appear to be any skeleton at the edges of the algae.

the first one is a fan like algae. I have 2 forming

the second one is super hard to get a good pic of. Every angle because of the glass is blurry but they’re the best I could do. It appears to be a branching algae.

 

[RJ wilson]

Hard to see in the pics but almost looks like a sponge

 

[AlgaeBarn]

Hard to see in the pics but almost looks like a sponge

Agreed it is hard to tell but the first two pictures look like it could be sponge?

 

[Sushiboy225]

Agreed it is hard to tell but the first two pictures look like it could be sponge?

Yeah, sorry for such the low quality. They’re in such a hard place to see and my eyes can see it fine but the glass just detracts everything and makes it blurry.
Are you saying both of them are a sponge?

 

[Jekyl]

Yeah, sorry for such the low quality. They’re in such a hard place to see and my eyes can see it fine but the glass just detracts everything and makes it blurry.
Are you saying both of them are a sponge?

Quality isn't bad. Pics in blue lighting are worthless most times.

 

[AlgaeBarn]

Quality isn't bad. Pics in blue lighting are worthless most times.

blue lights can definitely make it difficult to take pictures with!

 

[Sushiboy225]

Quality isn't bad. Pics in blue lighting are worthless most times.

Forsure, I’ll try to take pics in white light

 

[Sushiboy225]

Forsure, I’ll try to take pics in white light

Here’s some better pics hopefully!

 

[AlgaeBarn]

Here’s some better pics hopefully!

That looks like Photosynthetic plating purple/blue sponge! Neat guy to have and the more they grow the more they plate out like a monti cap!

https://reeffarm.com/product/photosynthetic-plating-purple-blue-sponge-collospongia-sp/​

 

[Sushiboy225]

That’s a

That looks like Photosynthetic plating purple/blue sponge! Neat guy to have and the more they grow the more they plate out like a monti cap!

https://reeffarm.com/product/photosynthetic-plating-purple-blue-sponge-collospongia-sp/​

That’s awesome! So both of those things are the purple/blue sponge? Or just the fan looking one not the branching one?