flatworm id

I found this little creature crawling on my glass at night, and I believe they’re flatworms. Can anyone help ID this? Or at least tell if they’re harmful or not? It looks transparent/white with black dots on them. Doesn’t look like brown flatworm unless it’s a baby.

I kept observing everyday and I didnt see any sign of it, but after a short travel I see packs of flat worms on the polyps of my goniopora, I took a video of it, but they are literally all of it. I am assuming these are the harmful flat warms and should be dealt with? If I am correct what would...

Look like the little brown ones but would like confirmation. I run SPS, Zoa, Paly's, one Frogspawn and one Duncan. Couple Ricordea Mushrooms too. Two clowns, one YWG. Would these pose a threat to any of them? Also if I need to eradicate them, what is the best method to not lose livestock/coral?

So I noticed my clam was closed up today and upon further inspection I see these little rust colored what I assume are flatworms on it. Are these cause for concern?

I’ve got a 37 gallon live rock and live sand only things in the tank as of now is a feather duster, astraea snails, nassarius snails, and a tuxedo urchin. I recently introduced a frag of zoa but I did dip it and inspected thoroughly before placing in tank. I noticed today a little critter...

HELP! I thought these were the normal amphipods covering the glass of my frag tank, but I seem to have picked up flat worms! Are these dangerous or ok? If dangerous, what kind are they and how can I treat them?

Found about 4 of these things in my sandbed coming out at night. White worms about 2 inches long or so. Any one know what they are?

Hi, I just started finding these flatworms in my tank. They are normally on my live rock and not on coral. They have a hard texture, with a pattern on their back. Does anyone know what specie of flatworm they are, and if they’re something I should be worried about? thanks in advance!