parasite

Well guys which one am I dealing with? No spots on other fish yet but this guys been In the tank a week and looks pretty covered to me. Didn’t see anything on him in observation which is weird. Ich or velvet?

Hi! I obtained a filefish (Monacanthus chinensis) from a local seafood restaurant three days ago. It started eating the next day after getting it (it prefers frozen mysis shrimp and chopped shrimp, and is currently ignoring live artemia), and from the second day it started eating from my hand! A...

Was giving my blue hippo a fresh water bath when I noticed his stomach seemed bulging a little bit, does this look normal? Or can this be a parasite . I attached pics Thanks!

I was watching my nassarius snails move when I put food in the tank, and it looks like some of them have a browish yellow flake like thing attached to their tails.. is that normal anatomy? Or is that a flatworm or other parasite and how Do I go about it? Thanks fellas I attached videos

I’d like some advice regarding the behavior of my Yellow Tang. I got this fish on January 14, 2025, and it has been in my tank for about 1 year and 3 months. It eats very well (nori and pellets). However, it seems slightly timid — it often hides in the rocks when I approach the tank. My main...

Hi, I have an Atlantic blue tang that looks like he has velvet but eats phenomenally itches looks like he has dust on him and doesn’t align with velvet ich or brooklynella and has had it for about a week and as a first effort to try to help a little I got a cleaner shrimp and the shrimp doesn’t...

Got you — here’s a smoother, blog-ready version that keeps your tone but cleans it up and flows better: I’ve noticed these worms in my sand bed from time to time during the day, but lately I’ve been having issues with some of my corals. Because of that, I started checking my tank at night to...

Hi, Today, while cleaning my tank, I noticed something that looked like a flatworm, though I’m not sure what it actually was. It appeared in a group and was difficult to remove,I had to use a scraper to get it off. Does anyone know what this might be? Thank you for your help!

Hey all, I'm an experienced freshwater keeper who's looking to dip my toes into saltwater. I've done my research, and I'm very much of the opinion that wild caught fish and corals are a no go. I'm from an area where wild corals are something I've never had the pleasure of seeing and I have no...

Hello, I recently got two tuxedo urchins, and today I noticed that one of them had a small patch where spines were missing and the test was exposed. Upon closer inspection I noticed these small critters around the area. They look like amphipods but with a dark/black body and a bright stripe on...

noticed this lobo coralhas been having some issues notice some white buildup on the side look like worms. Took the coral out and decided to dip it today in a revive and iodine dip. Then I noticed these white worms looking things were coming out like crazy. Was wondering if anyone had any more...

Hello everyone, I've been noticing reduced polyp extension and declining health on some of my acropora recently, upon further inspection I noticed small white spots scattered on the corals tissue. I suspected some type of parasitic copepod but these guys are much smaller than the red bugs that...

I noticed this lobo Khol has been having some issues notice some white buildup on the side look like worms. Took the coral out and decided to dip it today in a revive and iodine dip. Then I noticed these white worms looking things were coming out like crazy. Was wondering if anyone had any more...

We have had this Vlamingii Tang for a little while now and it has developed these white spots over the last two weeks along with raised bumps around his mouth. Tanked with a Purple Tang and a Sohal Tang. The other two Tangs are acting fine and nothing out of the ordinary visually with them but...

My powder blue tang just died a couple hours ago due to either parasites, bacterial infection or both. He was in my DT so I am going to treat the whole tank with paraguard just in case. It's only a fowlr tank with no invertebrates. Would this be a good medication to use? Also I was going to put...

I found these two worm looking parasites or bacteria? Was wondering if these are harmful to my tank or beneficial. I’ve never seen them before. Anyone know what they are. One was found in my carbon reactor, and the other was found in my main tank.

Need ID this black hair like small worms all over my tank. Like hundreds of them. I searched everywhere and couldn’t find anything, even use AI. They only appear when lights are off hiding from the sand and disappear with lights on.

Hi, can you help me identify this white worm like on my zoa and if should I be worried or what can I do with it. Thanks

I’ve never seen my fish poop something like this its white with some black spots. The fish is a citron goby and I’ve had it for 2 weeks. If it is an internal parasite what can I do to treat it?

Help all advice is appreciated. I have a 40 gallon overflow style tank filtration with a protein skimmer. Temp set to 79*F 3 carbon sponges and a biomedia bag. Water parameters are 8.0 pH 0.25ppm ammonia 0 nitrite 0 nitrate salinity is 32 or 1.024 specific gravity. I’ve had a pair of clowns...

Hi, I have these two parasites on an Acropora, they look like filter feeders of some kind, the mouths can be seen actively opening and closing on them, and reacting if I move close. Does anyone know what they are? Are they harmful for my tank? If so, how should I remove them? Whatever they...

About 10 days ago I purchased a six line wrasse from my LFS and I’ve noticed white dots on his fins. I have 3 fish in my tank - sixline wrasse, yellowtail damsel and a falco hawk fish. The six line is the only one with dots on him. He looks perfectly healthy and exhibits normal sixline...

Have 2 protrusions sticking out of scoly that I just bought and dipped. Also a threadlike worm protruding from under the base of my acan. Please help identify and let me know if they'll cause any issues.

Anyone know what this is? Found it on conch. Had conch for 2 months and just showed up this week.

I’ve had him for a bit and noticed he’s consistently got this white stuff hanging out of him. My guess is internal parasites but I’m not sure. I’m no noticing any other symptoms. What is it and how can I treat ?