What kind of Algae is this?

[spuri87]

I noticed a lot of algae growth on top of the return nozzles (is it common because tangs, CuC etc cant access this easily?).. there are also certain patches on the rocks with brown algae that's difficult to take out, I have captured a part of it in the video below.. Can someone please help identify if this is Bryopsis? I ordered new return nozzles from waterbox but want to understand if something like sea hare would help take care of at least the brown stuff on the rocks if not this algae on top of the return nozzle (due to its location perhaps). I already have Pithos, Emerald, Urchins, Snails that won't touch this brown algae on the rocks.

 

[rygh]

You need a close up with a flash. Can't see anything.
Look online for pictures as well, to see what matches.

Brown fuzzy algae is likely diatoms, and is something new tanks get. If you can squirt water at it, and a lot flys off, then likely that.
Really not a big deal. It will go away in a few months. Lower silicates.

Bryopsis has a fairly distinct feather like appearance. It is bad news, but less likely to be the problem.

Green hair algae definitely gets on pumps and nozzles where snails/fish cannot get it. No tank will be pristine.

 

[spuri87]

Brown fuzzy algae is likely diatoms, and is something new tanks get. If you can squirt water at it, and a lot flys off, then likely that.

It's very difficult to take off, even when using brush and internet says thats a Bryopsis symptom.. I will do some more research, thanks much

 

[PizzaOven]

Rip off a chunk with your fingers and check under white lighting. Like @rygh said, Bryopsis will have a feathery branch like structure. Green hair algae is just long individuals filaments. I wouldn’t worry much unless it’s bryopsis.

 

[rygh]

It's very difficult to take off, even when using brush and internet says thats a Bryopsis symptom.. I will do some more research, thanks much

The only brown crud I know of is Cyano (somewhat redish) and Diatoms. Both can be removed fairly easily, at least most of it.
So not sure what to say there.
Diatoms = silicate problem.
Cyano = phosphate problem.

Green hair algae can be tough stuff though, jsut like Bryopsis, so I would not use that to determine which one.
But that is not brown.
Cut a chunk off with scissors if needed, to example close under strong white light.