What is this between my paly?

[Stevenpandas]

Not sure what to make of this. I don’t think it is hair algae because it doesn’t look like it and my tank doesn’t have hair algae growing anywhere.

 

[P-Dub]

Can you take a photo with white lights, color correction filter, or amber sunglasses?

 

[samnaz]

Algae, maybe cladophora or codium?

 

[P-Dub]

Could also be monostroma, penicillius, or neomeris annulata.... Why a non-blue photo would help.