A little help please?

[Jason lamothe]

Okay so I have 2 mangroves in my sump, and I have a few questions. 1). I'm guessing the large white "thing" is some sort of... safe... filter feeder? 2). To the right of it, above the pink... I assume is some type of pod? 3). All the way to the left looks like small, white, curled up worms? Annnnnnd in the other picture, I noticed those small, white things growing in my live rock, I assume they are some type of sponge?

90g DT, 20g sump, phosphate=0, ammonia=0, nitrite=0, nitrate=5, PH=8.5,

 

[DSC reef]

I see pineapple sponges and spirorbid worms

 

[KJ]

Agree^^^