saboken_deleted
Reefing newb
I just setup a refugium I can't ID some things found in the tank and don't know if there bad? one looks like some kind of feather duster it closes when disturbed, the other is one of many white tube like growths the each hace two very long hair like things that pick up stuff off the sand, an the last I think is a bristle worm? there is red algae and there was sea lettuce but it all vanished after a week? something in the refugium must have eating it? any help with the photos would be great do I need to get rid of anything? and does anything need to go up to the display tank?