flatworm

Hi I have noticed these strange critters. Almost look like little flatworms but move like copepods they are dark red towards black to look at under blue lights. I think they are causing some tissue recession at the base of my acros and my candy cane coral? Or they may not be a pest and the...

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.

Hello, I was hoping to get some opinions about what type of flatworms these are.

This flatworm looking creature came off my lettuce nudibranch. I purchases this nudibranch about a month ago not really any problems with it until now. When I was checking the tank a lunch it looked as if it had laid eggs. About 3 hours later this thing has been moving around the tank. The...

Are they compatible? My sixline wrasses doesnt go after the flatworms on the glass and they are getting out of hand. Need some suggestions to keep them in check. It is the smaller ghost flatworms, i mainly see them on the glass, tiny little guys. Flatworm exit doesnt really work on them, have...

Photo and video of flatworms link. These appear to be Planaria flatworms, but the only photos I can find are of RED Planaria. These appear as brown. Anyone know if this is just a variant? They meet all the other characteristics of Red Planaria.

I have started to see a number of these very small (1 - 2 millimeter) brown/orange worms on the zoa garden. Zoas seem fine. I collected one and put it in water on the top of a small plastic coffee lid. Photo and video below. I've read there are benign worms that match this size, but I'd like...

Hello, Could someone help me with an ID on this flatworm? Maybe 1/4” in size. I have a fairly new mostly lps tank, I have recent lost of hammer which was doing really well for the first few month. I woke up one morning to a head with exposed skeleton, I took it out to dip the coral again (I...

I had a bad problem with euphyllia eating flatworm, which ended up killing all my euphyllia corals. It’s been about 6 months, and the rest of my non-euphyllia corals are all healthy and I would love to get some torch corals again, maybe some hammers too. My question: is the flatworm still in...

Hello all! So I finally have experienced flatworms! I just spotted one a few minutes ago. I then sent him down the sink, and then immediately realized I should have taken a picture first haha. Looked online, and this is pretty much what he looked like. I looked through the tank and spotted a...

I’m having some really weird stn issues going in in my tank. It’s a 10 gallon and has been going good for a couple weeks i’ve been having some really bad tissue loss on some sps and some lps that i have no idea what it is or what to do to treat. 1.025 sg P04 0.00 (hanna phosphate ULR) NO3 8.0...

Been having an issue with LPS in my tank declining over 4-6 weeks and eventually dying, hammers, torches, brains, acans seems to be limited to LPS as mushrooms and zoas grow like wildfire as do leathers and my rose bubble is enormous. Had previously dipped some of the LPS with either lugols or...

I have tons of these flatworms in my sump, never in my main tank. However I never saw it on my coral both SPS and LPS. In the past 6 months I lost only few SPS and LPS. I don’t think it relate to their growth which is much more I am curious that should I let it be or try to get rit of them...

Noticed this scurrying around my glass recently. Are they flatworms and are they cause for concern? I have had a string of bad luck lateIy and I am currently treating the tank for Bryopsis and Dinos.

Shrimp- like thing. Very bendy like a worm. Has pincers and seems to have many more legs than usual shrimp. Amphipod included in the shots for size/anatomy comparison. Is starfish an asterina? Haven't put either in tank. Mainly worried about what seems to be flatworms.. most of them were on...

Hey, Recently gone on a break for a month and came back home to a frag tank infested with red planaria, anyone got experience dealing with them? I suspect they hitched a ride on a coral I added in right before the trip. I would really want to try to avoid using chemicals. I was personally...

I found this guy scooting along on my glass. I was certain it was a flatworm when it was on the glass. However, I became less certain when I pulled out and placed under a microscope. I haven’t see a flatworm without the “horns” and ruffles, and certainly not that pattern. Of course there are...

Hello. Like many others, I was looking around my tank walls in search for pods. I found many, along with these flatworms. The flatworms seem to mostly hang out in the front glass and i've seen a couple crawling around rocks. Will they eventually start crawling on my corals and messing with them...

Newbie here, seen it get larger over past few weeks there’s two growths on it, Thoughts???

I know these are flatworms but I’m not sure about the species. Any help on best action to kill/remove from tank would be greatly appreciated. I’ve lost a frogspawn and hammer and keep trying to save what’s left. So far I’ve dipped the coral with just “seachem reef dip”. It doesn’t seem to phase...

I found what I'm 99% sure is red Planeria on my soft coral. I'm experienced in the fish world but this is my first tank with Coral. I have some soft corals along with a bunch of fish. So how much do I need to worry about this? Is this something that may not cause any harm if left or do I need to...

Hi Everyone, So after some long painful searches, I can find little to no data regarding the dipping of clean up crew members, specifically Trochus snails. For those who have encountered an unwanted flatworm invasion, I think it is useful to understand that the shells of our CUC can harbor any...

There is no triangle head...

So, this is an ongoing process and what I have done so far. Purely Information for others. Maybe help for me. I started a new 240g roughly 300 total volume and easy math. This was January. I put some corals in March and dipped In fresh water since I saw flatworms on them. I’m pretty rash and it...