Refugium Critter Identification

[AMP Tank]

I just started a refugium two weeks ago and suddenly today there are three new 'critters' on the glass wall. Please help me figure out if these are friends or foes.

#1 Blob thing

#2 Orange/Brown stringy thing

#3 Brownish dots

 

[Pistondog]

I just started a refugium two weeks ago and suddenly today there are three new 'critters' on the glass wall. Please help me figure out if these are friends or foes.

#1 Blob thing

#2 Orange/Brown stringy thing

#3 Brownish dots

Can't I'd, but all welcome in refugium.

 

[Isopod80]

Pic #1 are benthic formaniferans - harmless filter feeders.
Pic #2 is likely sponge - another harmless filter feeder.
Pic #3 is too blurry to tell.

 

[AMP Tank]

Pic #1 are benthic formaniferans - harmless filter feeders.
Pic #2 is likely sponge - another harmless filter feeder.
Pic #3 is too blurry to tell.

Thank you!