Pest Id

Are these likely copepods ? I added some 2 weeks ago and haven’t seen any during the day since adding ( thinking they’ve all been eaten) it’s the first time I’ve seen them on a night if so. Drawn to the glass which has some algae growth. Thoughts ?

What is this? Should I do a fresh water dip

Sorry for the poor microscope skills, but can anyone Identify this tiny flatworm?

HELP

I walked into my fish room to see this on my toadstool today, what is this? Will it harm my coral, what should I do

HELP🚨‼️

Would anyone be able to tell me what this is growing on this live rock? Got it for free but dont want to put it into my display tank if this stuff is a nuisance. Its pretty stiff, kinda like brush bristles or something

A fun thing to spot when I get home from work. 🙂😅 time to get a crab I guess

Eating algea every time

Short video of the random marks / tracks that keep showing up on my rock

Anyone know what this white looking spongey thing is? Came with the rock

Trying to id this stuff growing over my rock

Its balck / brown in color blows off easily with a feeding tub and sucks up easily during water changes

Can clean it off the rocks today and 2 days later its back ai and local reef pages ( in new zealand ) havent been much help any ideas

#help I do not know that is this. It' form is thin and not soft, little hard. Could someone help me to identify this thing?

First thought was a snail, but now I’m not sure.