Found some hitchhikers

As title says, found some stuff in my tank:

Bristle starfish?

View in up to 720p


Note the clown in that picture is about 1.75".



Some kind of eggs?








Not sure what this is. Looks kind of like white snails in the pictures but don't in person (and the gsp would have shredded them if they were).








Also, i'm guessing this is some kind of red algae of some sort? I put this live rock piece in the tank 10 days ago and this part sticking out was completely white and now its covered in the stuff which is also throughout a lot of the other rock. I'm guessing it's beneficial but thought I'd post it too in case it is something that will soon take over. The tank had room lighting until last Thursday when we installed a 40 watt, 20" 12k/460nm bulb from currentusa (which we love).




Picture of tank from afar to help see how big everything is (tank is a 29).




Thanks for any help.

 

Micro Brittle Stars

Bubble Algae

Not sure on the third.

Great looking tank BTW.

 

The third one is scypha sponges also called pineapple sponges. Good finds on the first and third.

 

Alright awesome. Thanks guys.