identify critters

Found this today.. looks like it laid an egg

When my lights go off. I see these little things floating around the water column. I was able to catch it with a net. I have never seen this before. The picture is the best I can do. Cuz my phone sucks lol.

So I purchased a rock with 8 rainbow anemones about a month ago and I notice I weird growth next to them at first i thought maybe I had some that where dying but now I think there something else entirely any thoughts thank you...

Well I thought I already posted but I’ll try again. Heya! Can anyone help me identify this one? I started a tank a couple weeks ago and wanted to give gsp a shot since I haven’t had any problems with my clowns and my levels have stabled out according to my LFS. The gsp has been doing great for a...

Tried to clean what I thought was diatom algae from the sand, but it looks like it may be a worm. This little critter has a bunch of tubes poking out of the sand. Help please!

Found these today coming from one of the pores in my rocks. Not a clue what they are- Theres three of them I can count. Not sure if related but my clowns are acting very skittish (I’ve never seen them behave like this) I’ve added some rocks from the beach that I took from Majorca a few days ago...

Does anyone know what this is? I found this worm just sitting out on the open on a frag tile in the frag tank. Their is now sand and zero live rock. It could have been introduced on a frag plug but I dip everything before it enters this tank. I’m just confused on how I’m just now seeing this...

Checking on my sump and these are starting to pop up. Is it Aiptasia and if so, what's your best suggestion to get rid of?