Animal Stories - Fish Disease and Treatment


Animal-World Information about: Fish Disease and Treatment

Introduction to aquarium fish diseases and treatments.
Latest Animal Stories
Mary Hernandez - 2012-04-22
I have a gold fish that I just realized that the scales have come off and that there is a white patch on its side. When it swims it seems to be unbalanced and it seems to like to stay by the oxygen. Can you tell me what I can do to help it or what is wrong with it. Thank You

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Rajesh Devasthale - 2012-04-22
I have small flowerhorn. 15 days ago I observed that he can't see the food. His eyes are not cloudy but I see abnormality in the eyes. He eats the food when comes in contact with it. I added terramycin tab(500mg). Will it help Please suggest.

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donald - 2012-04-19
I have goldfish, 7 of them. The big googlie eyed orange coloured one is twisting around in the tank and swims on its side and back positions. It can't sem to straighten up for long. It still eats fish food with the other fish. Should it be removed from the tank or will it finally die. Is there any treatment for it?

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  • Jeremy Roche - 2012-04-19
    Try giving it some peas. May be constipated. Check water conditions too.
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jamie - 2012-04-01
Hi. I have had my Jack Demsey for about a year now never any problems, healthy tank with other healthy fish. About 3 days ago out of nowhere I noticed him twirling around aimlessley. I set up hospital tank and transfered it. Its belly did not look swollen but it can't seem to regain normal swimming. I think from trying to turn its self around and around it has become tired and stressed sort of laying on bottom breathing hard but then trying again to swim normal. Its eyes have become bulged but I think it could be from crashing into tank rock plants etc. from not being able to get right could you please help. He is fighting he doesn't want to die. Very strong fish. This will be the 4th day.

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  • Jeremy Roche - 2012-04-02
    Did you check water levels? Enough air in tank? Maybe put some atr stones in the tank.
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Jon berry - 2012-03-27
Hi, I was cleaning the fish tank and I noticed a mark on my white telecopic fish, when looked closer it was moving! I can't really describe it but here goes... Clear jelly with black lines and spots with 6 white fins or legs. I got really close and my wife thinks its a shrimp look alike can any body help?

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  • Jeremy Roche - 2012-03-28
    Look up Brine Shrimp. Maybe of of those.
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Tatiana - 2012-03-12
Hi everyone, I've been having trouble figuring out what might be wrong with my two carnival goldfish (if anything at all). I've had these two for about a year without any trouble. But recently they got upgraded to a 10 gallon tank, and got two new tank buddies, a Shubunkin Goldfish and a Pleco. Everything seemed fine - they were occasionally skittish, which I assumed was due to the new environment, but a couple of days ago I noticed that some of their scales were missing. Today I noticed that the areas around their missing scales are looking more and more damaged, almost wrinkled, and that they are diving down to the gravel and hitting their sides on the rocks. At first I thought maybe they were just getting hurt at night because as a part of the tank decor I used a large fools gold rock and some acrylic cubes, but the Shubunkin seems to be fine without any scale damage or brushing on the gravel. The Pleco is also happily hiding away as they do. I thought it could maybe be Velvet or Ich, but I dont see any spots on them at all. A part of me still thinks this maybe the case as I discovered today that my betta (who occupies a separate bowl, but with whom I share the net) has Velvet, but I dont want to medicate them incorrectly. Besides the scale damage and gliding, their behavior is quite normal. They eat like pigs and leave no scraps for the pleco. They are actively swimming throughout the day, and keep in a group (including their new buddy the Shubunkin). If anyone has any idea what might be wrong with them, or if maybe it's just my decor, please let me know. Thank you so much!

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  • Jeremy Roche - 2012-03-13
    Test your water or take to a pet store to have it tested. Filter may not remove the extra ammonia fast enough. It can feel like a sunburn to a fish.
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Vernon Zellers - 2011-04-07
I have 8 gold fish in an outside deck pond. One has some areas where the skin is gone and muscle is exposed.

Others have some white spotting of the scales.

The water is normal well water changed every 7 days with continous feed (slow) from the well. The water tested with no adverse chemical/nutrient found.

Feed standard good fish food.
I have quarantined the most affected.
Can someone tell me what is happening?


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  • Charlie Roche - 2011-04-07
    Check out the information on Animal-World Fish Diseases and Treatment. There are a couple that state spotting of the scales as a symptom but additional information is provided. They have been into fish for a trillion years and the information is easy to follow and I believe will help. Good luck and let us know.
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kayode - 2011-07-31
I have 9000 fingerlings in an acre of land. On the 35th day I noticed that they are just dying one after another. I have harvested 740 dead fish already. What could be the cause? Someone please help out before I lose all my lifetime investment.

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  • Clarice Brough - 2011-08-01
    Wow, that's a lot of fish, and a big pond! But without more information, can't give you much help. Here's some things to look for... Are the fish infected - bacterial, fungal, or parasitic? Of course fish disease is usually the result of environmental conditions, so you need to look at the water. So, is there something wrong with the water? There is a possiblility the water is polluted or the wrong temperature. Was the water established with aquatic life when you added the fish? Is there enough water to support the fish?... is the water moving?... does it get oxygenated?

    I have recently heard stories that some of the areas where the temperatures have gotten so hot in the last couple of weeks, some fish farms are having to move their stock. The water temperatures are just getting too high. I'd suggest you contact fish farms on your area, or maybe fish farms in Florida for more help. You can also call the Fish and Game Department in your area. There's a number of expert people in that business that can help you figure out what's going on.

    Good luck!
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gouramigal - 2011-07-14
My gourami is not doing well. It's been hiding and not eating for the past 4 weeks or more and then swims fast to the top of the tank for a mouthful of air and then retreats to its hiding spot. Every now and again it comes out but it seems to be getting worse, laying on its side gasping for air. Others have said dropsy but I'm not sure. It seems to be common with this species. someone said to add salt to the water but im scared to. I only noticed the change in my fish when my son decided to add shells he found from the beach, plus my husband changed the whole lot of water instead of 25%. So i hope these factors haven't killed my fish.. this will be the second one ;(

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  • Charlie Roche - 2011-07-14
    Look at the Article Fish Diseases and Treatment. Please check all the conditions in the tank, water temperature, PH etc. The seashells (salt) and the changning that much water (chlorine) can have changed the tanks perameters. Check and fix. OK?
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Cheryl - 2011-05-09
I have 4 common goldfish and just noticed that one of them has this white bubble growing on its head. It does not look like it has puss in the bubble unless it has already popped. I need to know, should I take this one out of the tank so that the other 3 do not get what this one has? Is this treatable? The other 3 fish are about 5.5 to 6 inches in length and the one with the bubble on its head is only about 2 inches and they were all put into the tank at the same time. I do not want to loose these fish so can someone please help me out?

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  • Charlie Roche - 2011-05-09
    Without more specifics, there is no way for me to tell. Could be ICH or something called Hole in Head.... there are several things that sound like white sore or white mark. Attached is an article on Fish Disease and Treatment. Clcik on it and scroll down and it lists the various symptoms and recommended treatments. It is pretty informative and yo should be able to tell what your little guy has from reading the symptoms. Let us know.
  • Clarice Brough - 2011-05-09
    The first thing that comes to mind is a fungal infection... which looks like a cottony patch, usually rather grayish or white. You could isolate him until you determine if it is an infection just to be on the safe side.
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