Weird new life in fishless tank

[Saltwater newby]

Hello, last night I noticed 3 strange creatures in my 75g tank. We currently have no fish in the tank. I had two blue damsels which I've removed and given back to my LFS and I had a pair of clown that died of brooklynella. My tank has been running since January . Last night we found a small tiny pointy shelled snail,and clear weird booger looking slime. (Maybe a flat worm)? Attached to the glass was a very tiny star, snow flake looking clear thing and this morning I saw a white shell less snail or worm looking thing which I took a pic of. I removed the flat worm and white snail-worm looking thing. Should I be worried? I was planning on getting 2 small frags of start polyps and possibly 2 clowns this weekend if my parameters show to be good. The clowns are being given to me by my LFS since the once I purchased from them only last 2 days.
Thanks in advance!!!������

[peasofme]

probably just ocean life you will see in your tank. you can be cautious and remove or just let it be and see. only one i would be weary of is the worm. could be a parasite.

[Saltwater newby]

probably just ocean life you will see in your tank. you can be cautious and remove or just let it be and see. only one i would be weary of is the worm. could be a parasite.

Hello
Thanks for the info.
Which worm are you referring to
The one on my pic??

[peasofme]

yes. and the one you think is a flatworm

[Saltwater newby]

yes. and the one you think is a flatworm

Will they hurt the fish or just corals??

[peasofme]

parasites can hurt fish. flatworms can reproduce to nuke a tank.

[Saltwater newby]

parasites can hurt fish. flatworms can reproduce to nuke a tank.

this is the other one that I found stuck to the glass. Ever seen this before??

[peasofme]

could be a baby starfish

[lifeoffaith]

That last one is a hydroid. Remove it.

[peasofme]

hydroids are really bad

[Saltwater newby]

hydroids are really bad

Ok. Man I can't catch a break. Are they hitchhikers?
Do they attack fish???

[peasofme]

they are hitchhikers. they sting fish and corals and multiply a lot. this is why some people choose to use dry rock instead of live. you get good and bad hitchhikers. bad can be a real pain.