diagnosis

  1. TashaB98

    EMERGENCY Foxface Rabbitfish Developed Brown/Black Spots

    Help!! I went down to my tank today and noticed these brown/black, kind of raised spots on my foxface rabbitfish. Parameters are all in check, they’re checked every other day. He’s eating well and I haven’t noticed any odd or new behaviours. He always has a healthy supply of nori and eats the...
  2. VanCityReef

    EMERGENCY Green Spotted Puffer Swollen Lower Belly and Stringy Poop

    My beloved Green Spotted Puffer has recently developed a swollen lower belly near its anus and been making stringy poop. He was doing fine for a few days and still eating, but recently stopped. He went a few days without eating and didn’t show signs of improvement. I’ve got him in a breeding box...
  3. N

    Ich or flukes or something else entirely?

    Im thinking my purple tang may have flukes, currently the only fish in the tank with this appearance and has been in my tank for some time now. Just want to be sure what the issue is before I move it to the hospital tank as that will obviously determine whether Im going copper or prazipro
  4. Jay Hemdal

    Self-Diagnosis of Common Marine Fish Diseases

    Self-Diagnosis of Common Marine Fish Diseases Jay Hemdal, c. 2025 Misdiagnosing fish diseases often leads to ineffective treatments, which can result in the loss of fish. Early and accurate diagnosis is critical for successful treatment. While the Fish Medics at Reef2Reef are trained to...
  5. S

    EMERGENCY My fox face is starting to look ill

    I noticed he was very lethargic yesterday and when I fed them he didn’t seem too interested, he’s stayed the same today. He also looked just not quite right maybe a bit paler and I’ve noticed today he has some kind of white spot on his tail, there is no other spots on his body just 1 singular...
  6. pookie

    Copperband ich or flukes?

    Hello I treated this copperband with chloroquine phosphate for 14 days then transfered him to sterile tank. During observation I observed these "bumps" almost completely invisible when looking at his side but see them when he faces me I started a prazi treatment in the qt tank. Just need 100%...
  7. J

    Emperor Angel not eating

    I have a 2.5 year old Emperor Angelfish that recently stopped eating. No major changes to the tank since adding new fish 12 months ago. Fins are a little beaten up but not sure who did it, or if it happened in its own. The emperor occasionally shakes its head, but I may be seeing things that...
  8. Basic Marine Fish Disease Slide Show

    Basic Marine Fish Disease Slide Show

    . This file is an adaptation of my university lecture on marine fish diseases. It includes a variety of links to Reef2Reef files for additional information. This file is a converted PowerPoint file made into a PDF. It may not work on all platforms. Click and download the PDF file on the...
  9. W

    Sudden death of blue eyed tang

    First post, I’m rather new to the hobby. I’ve had 20 gal tank for a year and recently upgraded to 40 gal. To accompany my two clownfish and I bought a blue eyed tang. When I brought him home I noticed he had a faint red spot that appeared to be internal. Either on his hepatic portal system, or...
  10. Colorado ‘Nole

    Diagnosis assistance with Clown - Possible uronema marinum?

    I’m hoping to get some assistance in identifying what’s on one of my clowns. After reading a thread on uronema marinum by @Humblefish , I am wondering if that could be the culprit. I’ve had this fish for nearly 5 years, no new fish introduced in the last 12 months. Only other in the tank is her...
  11. A

    Struggling with Copperband Butterfly refusing to eat

    Hello all! I'm posting here because I am sort of at a loss. I have spent a good chunk of time over the past week that I have been acclimating my copperband butterfly combing over posts related to how finicky they are of eaters. I have gone down every rabbit hole I can find- from stray voltage to...
  12. W

    EMERGENCY Potential Flukes?

    Hello, recently I made a post about the sea goblin and zebra lionfish I got. They had arrived yesterday and I think the trip had taken a toll on the zebra lion (the goblin was fine), he was upside down and his gills were red. The seller said that it was due to a lack of oxygen and when I placed...
  13. B

    Please help

    Hey guys i got these clowns from lfs and one had what looked like popeye in one eye but jumped out of net when lady at lfs was bagging him up so i thought it was ok. Now the other has a cloudy right eye as well and im not sure what to do, is this brook, ich, or just popeye infection. How should...
  14. An_Enemy

    EMERGENCY Female clownfish has raised red mark on her side

    My female clownfish has raised red mark on her side. It's a raised red area that's pushing up under her scales. Wasn't there yesterday, it's sudden and looks pretty bad. Anyone know what it could be or have advice for treatments? I have methylene blue, API General Cure and Seachem Focus
  15. Lelegance

    Octospawn not happy

    recently bought the bright green octospawn, and it was happy and open for about a week until it started not opening fully. Newly added frogspawn is happy though, they are in the same flow, light, and all else, figure it is a chemical issue since it was happy when i first got it. At night it even...
  16. A

    EMERGENCY Fish diagnosis

    Royal looks like it may have ich or something but I can’t figure out what it is. Might be on my clowns as well. Can someone help me please
  17. Alex-Reef

    EMERGENCY Help diagnosis and how to treat it my yasha goby

    So I couple of days ago I noticed my yasha goby out of sher cave noticed that she was stain still and no moving , I didn't put to much matter to it cause I feed the fish she eat a little, the on the next day I notice here slowly crusing very slowly and I feed my fish and she seems to struggle to...
  18. 407Hunter

    Clownfish swimming down + shaking

    Dear R2R community, Maybe some help with my new tank. 6 weeks in. Topped off RO last night. Placed 6 new soft corals in last week. Darker clownfish affected in videos. Lighter clownfish will occasionally nudge him at his belly to move or play. Last evening: Clownfish pointing downwards...
  19. sheepersheep

    white dots around mouth

    sorry about the bad quality, he's small and keeps moving but i tried to get a good picture of him. there are white dots around his mouth and i saw another small dot next to his side fin. I'm worried this is something bad. the other clownfish looks heathy and clean, I've only had them for a...
  20. R

    Tank Almost Wiped out need Diagnosis

    Tank almost wiped out and not sure if it was Velvet or Ich TLDR at bottom Some context - 2x Clown Fish, Cleaner Shrimp, Yellow Tang, Blue Tang, Royal Gamma, Cherub Angelfish, last one I don't remember look a Blenny or a Jawfish. I recently added the Yellow Tang and a snail that didn't move...
  21. A

    Xenia Dying?

    Hi there! I recently set up a new tank, it has been running for two months and is finally cycled. Last week, I put in two snails, some xenia, and two mushrooms. Today, I rinsed off my new powerhead and placed it into my tank, and now my xenias are all closed. It is the same one i had before...
  22. L

    Help with diagnosis (ich, velvet, brooke?)

    Hi Everyone, firstly I appreciate any help and/or advice you can provide. Pretty stressed out right now about the state of my tank and am unsure of where to go from here. A bit of background, my tank has been established for around 2 years now, most of which has gone smoothly. There was some...
  23. belly14

    Ich reappearance AFTER Hypo

    Firstly, APOLOGIES as I know there are a million and one threads already about Ich treatment and management etc but I read so many I then get lost as to what to do so I thought I'd explain my situation and see if there is any specific advice to me... So new marine tank had Ich after about 2...
  24. A

    EMERGENCY White splotches on clownfish

    Hi everyone, I have had a pair of clowns for about 2 years, and over the last two days I noticed some white splotches on the smaller one. It’s been eating normally and hasn’t had any noticeable change in behavior, but I’m worried that it could be a disease. There haven’t been any new fish...
  25. belly14

    EMERGENCY Diagnosis of Dog Faced Puffer

    Hi All, need some help with diagnosis of a new dog faced puffer added to tank about a week ago. Seems healthy and eating and swimming well but just noticed these small white dots and it panicked me slightly… many thoughts more that welcome, thanks in advance C.
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