worms and snail id

I have no clue. I just treated (twice) for flatworms using flatworm exit. This is long and moves fast. Doesn’t have the shape of the brown flatworms I eliminated

My fish started dying yesterday and I found two of these worms that look like small snouts coming out of the rock. Not sure if the fish crisis is related to this hitchhiker, could've been due to some "herbal ich treatment" I bought from Petco (huge mistake, I know). Water Params: Alk 6.8...

Hi guys Please any one have identified for this worms i have too much in my saltwater tank stack on glass are they harmful to fish or corals How can I get rides them Thank u

Just noticed these little worms all along one side of my tank they are all living in my sand bed and making little tunnels along my glass not really harming anything just curious what they are. Any help IDing these little guys is much appreciated just wanna learn as much as I can!

Hi, these started appearing pretty much as soon as i started my tank and i think they're really ugly. Does anyone know what they are and how to remove them? They seem to like growing right where the soft lps tissue would cover when they grow whuich may be a problem as theyre very sharp and hard...

i have these 2 types of snails/ worms on my goniopora . are these harmful or beneficial? i also have this algae,what type of algae is this? and this is the only algae in my tank, i have turbos,trochus and nerites and none of them seem to eat this algae. thank you in advance and this is my...