White/Colorless Fuzz?

[Silentpanda619]

Does anyone have any clue what this stuff on my rock is? It does not scrub off easily (or really at all). It grows on rocks and shells but does not appear to grow on glass or corals. It has completely covered all rock that is not covered in corals. Seems photosynthetic because it doesn't grow on the underside of rocks. It is fuzzy/hairy but doesn't get that long. It is clear/white.

I can't seem to find much of anything online that matches. I have had it for months now. I thought it was just a phase and would go away as the tank got established (transferred everything from old tank to this new one. Old tank never had this).

It seems like the clean up crew either isn't very interested in it or it grows back too fast for them to make much of a difference.

Tank Parameters are extremely stable.
Alk ~9.2
Calcium ~470
Magnesium ~1380
Salinity 1.026
Temp 78
Phosphate 0.03
Nitrate Low (1-5 or so but need to get a Hanna)

Any help is greatly appreciated! I can't seem to figure this one out.

 

[Justfebreezeit]

I had something similar when my tank was about a year old for 3 or 4 months. It did go away on its own eventually. Only on one rock surprisingly

 

[Silentpanda619]

I had something similar when my tank was about a year old for 3 or 4 months. It did go away on its own eventually. Only on one rock surprisingly

Hopefully, it will do the same here then. I have had it for something around 3 months or so. No signs of it slowing down so far.